diff --git a/build-constraints.yaml b/build-constraints.yaml
index c4ea0f26..ff87d8e2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7,6 +7,9 @@ cabal-format-version: "1.24"
 
 # Constraints for brand new builds
 packages:
+    "Agustin Camino <agustin.camino@gmail.com> @acamino":
+        - state-codes
+
     "Sebastian Mihai Ardelean <ardeleanasm@gmail.com> @ardeleanasm":
         - qchas
 
@@ -24,9 +27,9 @@ packages:
     "Pavol Klacansky <pavol@klacansky.com> @pavolzetor":
         - openexr-write
 
-    "Bas van Dijk <v.dijk.bas@gmail.com> @basvandijk": []
-        # - opencv
-        # - opencv-extra
+    "Bas van Dijk <v.dijk.bas@gmail.com> @basvandijk":
+        - opencv < 0 # hard to install build tools
+        - opencv-extra < 0 # hard to install build tools
 
     "Pasqualino Assini <tittoassini@gmail.com> @tittoassini":
         - zm
@@ -34,24 +37,24 @@ packages:
         - model
 
     "Timo Koepke <timo.koepke@gmail.com> @koepket":
-        []
-        # https://github.com/lindenbaum/hinterface/issues/2
-        # - hinterface
+        - hinterface < 0 # compilation failure https://github.com/lindenbaum/hinterface/issues/2
 
     "Jose Iborra <pepeiborra@gmail.com> @pepeiborra":
         - arrowp-qq
         - clr-marshal
         - clr-host
+        - haskell-src-exts-util
         - hexml-lens
-        - hp2pretty # With permission of Claude Heiland-Allend
-        - floatshow # https://bitbucket.org/dafis/floatshow/issues/1/add-to-stackage
+        - hp2pretty
+        - floatshow
+        - NoHoed
         - threepenny-editors
-        - clr-inline  # possibly nondeterministic failures, see https://github.com/fpco/stackage/issues/2510
+        - clr-inline # possibly nondeterministic failures, see https://github.com/fpco/stackage/issues/2510
 
 
     "Joshua Koike <jkoike2013@gmail.com> @jano017":
         []
-        # - discord-hs # bouns: req
+        # - discord-hs # bounds: req
 
     "Roman Gonzalez <romanandreg@gmail.com> @roman":
         []
@@ -61,7 +64,8 @@ packages:
     "Richard Cook <rcook@rcook.org> @rcook":
         - hidden-char
 
-    "Vanessa McHale <tmchale@wisc.edu> @vmchale": []
+    "Vanessa McHale <tmchale@wisc.edu> @vmchale":
+        []
         # - tibetan-utils # bounds: text-show
 
     "Henning Thielemann <stackage@henning-thielemann.de> @thielema":
@@ -81,9 +85,9 @@ packages:
         - comfort-graph
         - concurrent-split
         - cutter
-        # - data-accessor # GHC 8.2.1
+        - data-accessor # GHC 8.2.1
         - data-accessor-mtl
-        # - data-accessor-template # GHC 8.2.1
+        - data-accessor-template # GHC 8.2.1
         - data-accessor-transformers
         - data-ref
         - dsp
@@ -92,8 +96,8 @@ packages:
         - event-list
         - explicit-exception
         - fixed-length
-        # - gnuplot # GHC 8.2.1
-        # - group-by-date # GHC 8.2.1 via c2hs
+        - gnuplot # GHC 8.2.1
+        - group-by-date # GHC 8.2.1 via c2hs
         - iff
         - interpolation
         - jack
@@ -113,26 +117,25 @@ packages:
         - sample-frame
         - sample-frame-np
         - set-cover
-        # - sound-collage # GHC 8.2.1 via synthesizer-core
-        # - sox # GHC 8.2.1
+        # - sound-collage # via synthesizer-core compilation failure
+        - sox # GHC 8.2.1
         - soxlib
-        # - split-record # GHC 8.2.1 via synthesizer-core
+        # - split-record # via synthesizer-core compilation failure
         - spreadsheet
         - stm-split
         - storable-record
         - storablevector
-        # - synthesizer-core # GHC 8.2.1
-        # - synthesizer-dimensional # GHC 8.2.1 via synthesizer-core
-        # - synthesizer-midi # GHC 8.2.1 via synthesizer-core
+        - synthesizer-core < 0 # test compilation failure
+        # - synthesizer-dimensional # via synthesizer-core compilation failure
+        # - synthesizer-midi # via synthesizer-core compilation failure
         - tagchup
         - tfp
         - unicode
         - unsafe
         - utility-ht
         - xml-basic
-        # - youtube # GHC 8.2.1
+        - youtube # GHC 8.2.1
         - prelude-compat
-
         - fft
         - carray
         # Not a maintainer
@@ -158,8 +161,7 @@ packages:
         - newtype-generics
 
     "Joe M <joe9mail@gmail.com> @joe9":
-        []
-        # - logger-thread # GHC 8.2.1 via protolude
+        - logger-thread # GHC 8.2.1 via protolude
         # - text-generic-pretty # GHC 8.2.1 via ixset-typed
 
     "Li-yao Xia <lysxia@gmail.com> @Lysxia":
@@ -174,11 +176,11 @@ packages:
 
     "Luke Murphy <lukewm@riseup.net> @lwm":
         - tasty-discover
-        # - lentil # bounds: optparse-applicative
+        # - lentil # bounds: optparse-applicative & via terminal-progress-bar
         # - packunused # bounds: optparse-applicative
 
     "Marco Zocca @ocramz":
-        # - sparse-linear-algebra # GHC 8.2.1 via MemoTrie
+        - sparse-linear-algebra # GHC 8.2.1 via MemoTrie
         - matrix-market-attoparsec
         - network-multicast
         - xeno
@@ -203,7 +205,7 @@ packages:
         - binary-parsers
         - binary-ieee754
         - word24
-        # - mysql-haskell # bounds: memory
+        # - mysql-haskell # 3 packages out of bounds: https://github.com/winterland1989/mysql-haskell/issues/16
         # - mysql-haskell-openssl # bounds: tcp-streams
         - data-has
 
@@ -211,7 +213,7 @@ packages:
         - unicode-transforms
 
     "Aleksey Uimanov <s9gf4ult@gmail.com> @s9gf4ult":
-        # - postgresql-query # via: derive
+        # - postgresql-query # compilation error
         - hreader
         - hset
 
@@ -234,18 +236,17 @@ packages:
 
     "alpheccar <misc@alpheccar.org> @alpheccar":
         - HPDF
-        # https://github.com/alpheccar/hbayes/issues/3
-        # - hbayes
+        - hbayes < 0 # compilation failure https://github.com/alpheccar/hbayes/issues/3
 
     "Dmitry Bogatov <KAction@gnu.org>":
         - once
 
     "David Johnson <djohnson.m@gmail.com> @dmjio":
-        # - miso # GHC 8.2.1
+        - miso # GHC 8.2.1
         - envy
         - s3-signer
-        # - google-translate # bounds: servant
-        # - hackernews # GHC 8.2.1
+        - google-translate # bounds: servant
+        - hackernews # GHC 8.2.1
         # - ses-html # bounds: time 1.6
         # - stripe-haskell # via: stripe-http-streams
         # - stripe-http-streams # via: http-streams
@@ -265,7 +266,7 @@ packages:
         - conduit-combinators
         - conduit-extra
         - hebrew-time
-        # - keter # https://github.com/snoyberg/keter/issues/170
+        - keter < 0 # compilation failure https://github.com/snoyberg/keter/issues/170
         - markdown
         - mime-mail
         - mime-mail-ses
@@ -275,12 +276,12 @@ packages:
         - persistent-postgresql
         - persistent-sqlite
         - persistent-template
-        # - stackage-curator # GHC 8.2
-        # - store # GHC 8.2
+        # - stackage-curator # via store compilation failure
+        - store < 0 # compilation failure
         - stm-conduit
         - wai-websockets
         - warp-tls
-        # - yackage # GHC 8.2.1 via yesod-form
+        - yackage < 0 # compilation failure
         - yesod
         - yesod-auth
         - authenticate-oauth
@@ -319,7 +320,7 @@ packages:
         - hybrid-vectors
         - indents
         - language-c
-        # - lhs2tex # https://github.com/kosmikus/lhs2tex/issues/55
+        - lhs2tex < 0 # compilation failure https://github.com/kosmikus/lhs2tex/issues/55
         - persistent-mongoDB
         - pretty-class
         - th-expand-syns
@@ -338,6 +339,7 @@ packages:
         - say
         - unliftio-core
         - unliftio
+        - compact
 
         - fsnotify
         - hinotify
@@ -345,15 +347,15 @@ packages:
         - Win32-notify
 
     "Omari Norman <omari@smileystation.com> @massysett":
-        # - rainbow # GHC 8.2.1 via lens-simple
-        # - rainbox # GHC 8.2.1 via lens-simple
-        # - anonymous-sums # https://github.com/massysett/anonymous-sums/issues/1
+        - rainbow # GHC 8.2.1 via lens-simple
+        - rainbox # GHC 8.2.1 via lens-simple
+        - anonymous-sums < 0 # compilation failure https://github.com/massysett/anonymous-sums/issues/1
         - multiarg
-        # - prednote # GHC 8.2.1 via lens-simple
+        - prednote < 0 # test compilation failure
         - cartel
         - Earley
         - ofx
-        # - pinchot # GHC 8.2.1
+        - pinchot < 0 # compilation failure
         - accuerr
         - timelens
         - non-empty-sequence
@@ -374,7 +376,7 @@ packages:
         - ghcid
         - hexml
         - weeder
-        # - profiterole # GHC 8.2.1 via ghc-prof
+        - profiterole # GHC 8.2.1 via ghc-prof
 
     "Alan Zimmerman @alanz":
         - ghc-exactprint
@@ -397,7 +399,7 @@ packages:
         # - hakyll # bounds: skylighting
         - stylish-haskell
         # - patat # bounds: skylighting
-        # - profiteur # GHC 8.2.1 via ghc-prof
+        - profiteur # GHC 8.2.1 via ghc-prof
         - psqueues
         - websockets
         - websockets-snap
@@ -413,7 +415,7 @@ packages:
         - hourglass-orphans
         - wai-slack-middleware
         - sysinfo
-        # - xmonad-extras # GHC 8.2.1 via c2hs
+        - xmonad-extras # GHC 8.2.1 via c2hs
 
     "haskell-openal":
         - OpenAL
@@ -470,7 +472,7 @@ packages:
         - xenstore
 
     "Chris Done @chrisdone":
-        # - labels # https://github.com/chrisdone/labels/issues/8
+        - labels < 0 # compilation failure https://github.com/chrisdone/labels/issues/8
         - ace
         - ical
         - check-email
@@ -482,9 +484,9 @@ packages:
         - lucid
         # - osdkeys # via libnotify # Cabal 2.0.0.2
         - pdfinfo
-        # - present # compilation failure against haskell-src-exts
+        - present
         - pure-io
-        # - scrobble # compilation errors against time 1.6
+        - scrobble < 0 # compilation failure against time 1.6
         - sourcemap
         - hindent
         - descriptive
@@ -493,16 +495,16 @@ packages:
         - intero
         - weigh
         # - haskell-docs # BLOCKED haddock-api GHC 8.0.2
-        # - structured-haskell-mode # bounds: haskell-src-exts # via: applicative-quoters
+        - structured-haskell-mode
 
     "Alberto G. Corona <agocorona@gmail.com> @agocorona":
         - RefSerialize
         - TCache
         - Workflow
         - MFlow
-        # - transient # https://github.com/transient-haskell/transient/issues/70
-        # - transient-universe # via transient
-        # - axiom # via transient
+        - transient
+        - transient-universe
+        - axiom
 
     "Edward Kmett <ekmett@gmail.com> @ekmett":
         - ad
@@ -522,6 +524,7 @@ packages:
         - constraints
         - contravariant
         - distributive
+        - discrimination
         - either
         - eq
         - ersatz
@@ -544,7 +547,7 @@ packages:
         - monadic-arrays
         - monad-products
         - monad-products
-        # - monad-st # bounds: transformers
+        - monad-st
         - mtl
         - nats
         - numeric-extras
@@ -553,6 +556,7 @@ packages:
         - prelude-extras
         - profunctor-extras
         - profunctors
+        - promises
         - reducers
         - reducers
         - reflection
@@ -602,7 +606,7 @@ packages:
         # - diagrams # bounds: optparse-applicative
         # - diagrams-builder # GHC 8.2.1
         # - diagrams-haddock # BLOCKED directory 1.3 via cautious-file
-        # - diagrams-cairo # bounds: optparse-applicative
+        # - diagrams-cairo # bounds: optparse-applicative & via pango
         # - diagrams-contrib # GHC 8.2.1 via dual-tree
         # - diagrams-core # GHC 8.2.1 via dual-tree
         # - diagrams-gtk # bounds: optparse-applicative
@@ -610,7 +614,7 @@ packages:
         # - diagrams-postscript # GHC 8.2.1 via diagrams-core
         # - diagrams-rasterific # bounds: optparse-applicative
         # - diagrams-svg # bounds: optparse-applicative
-        # - dual-tree # GHC 8.2.1 via testing-feat
+        # - dual-tree # via testing-feat
         - force-layout
         - haxr
         - MonadRandom
@@ -620,34 +624,35 @@ packages:
         - JuicyPixels
         - FontyFruity
         - Rasterific
-        # - svg-tree # https://github.com/Twinside/svg-tree/issues/11
-        # - rasterific-svg # https://github.com/Twinside/svg-tree/issues/11
-        # - asciidiagram # https://github.com/Twinside/svg-tree/issues/11
+        - svg-tree < 0 # haddocks never finish https://github.com/Twinside/svg-tree/issues/11
+        # - rasterific-svg # via svg-tree haddock loop https://github.com/Twinside/svg-tree/issues/11
+        # - asciidiagram # via svg-tree haddock loop https://github.com/Twinside/svg-tree/issues/11
 
     "Patrick Brisbin @pbrisbin":
         - gravatar
 
-    # "Paul Harper <benekastah@gmail.com> @benekastah":
+    "Paul Harper <benekastah@gmail.com> @benekastah":
+        []
         # - yesod-auth-oauth2 # bounds: aeson-1.0, http-client, load-env
 
     "Felipe Lessa <felipe.lessa@gmail.com> @meteficha":
         # - country-codes # bounds: tagsoup
-        # - fb # bounds: aeson, http-conduit-2.2, hspec
-        # - fb-persistent # bounds: persistent # via: fb
-        # - mangopay # compilation failure against aeson
+        - fb
+        # - fb-persistent # bounds: persistent
+        - mangopay < 0 # compilation failure against aeson
         - nonce
         - serversession
         # - serversession-backend-acid-state # via acid-state: via safecopy: bounds: vector
-        # - serversession-backend-persistent # bounds: persistent, persistent-postgresql, persistent-sqlite
-        # - serversession-backend-redis # bounds: hedis
-        # - serversession-frontend-snap # bounds: snap, snap-core
+        - serversession-backend-persistent
+        - serversession-backend-redis
+        # - serversession-frontend-snap # via snap
         - serversession-frontend-wai
         - serversession-frontend-yesod
         - thumbnail-plus
         # - yesod-auth-account-fork # bounds: persistent
-        # - yesod-auth-fb # bounds: time, transformers # via fb, via yesod-fb
-        # - yesod-fb # via fb
-        # - yesod-mangopay # via mangopay
+        - yesod-auth-fb
+        - yesod-fb
+        # - yesod-mangopay # bounds: wai-logger, vector, hjsmin
 
     "Alexander Altman <alexanderaltman@me.com> @pthariensflame":
         # Maintaining on behalf of @roelvandijk:
@@ -658,6 +663,18 @@ packages:
 
     "Trevor L. McDonell <tmcdonell@cse.unsw.edu.au> @tmcdonell":
         - accelerate
+        - repa
+        - repa-io
+        - repa-algorithms
+        - gloss
+        - gloss-algorithms
+        - gloss-raster
+        - gloss-rendering
+        - cuda
+        - cublas
+        - cusparse
+        - cusolver
+        - nvvm
 
     "Liam O'Connor <liamoc@cse.unsw.edu.au> @liamoc":
         []
@@ -671,7 +688,7 @@ packages:
         # - agda-snippets-hakyll # bounds: ghc, base
 
     "Dan Burton <danburton.email@gmail.com> @DanBurton":
-        # - hspec-jenkins # hspec 2.4.1 # https://github.com/worksap-ate/hspec-jenkins/issues/3
+        - hspec-jenkins < 0 # compilation failure https://github.com/worksap-ate/hspec-jenkins/issues/3
         - yesod-gitrev
         - basic-prelude
         - composition
@@ -690,7 +707,7 @@ packages:
         # - grouped-list # GHC 8.2.1
         - haskintex
         - HaTeX
-        # - hatex-guide # https://github.com/Daniel-Diaz/hatex-guide/issues/21
+        - hatex-guide < 0
         - include-file
         - matrix
         - pcre-light
@@ -707,7 +724,7 @@ packages:
         - pipes-safe
         - turtle
         - foldl
-        # - morte # GHC 8.2.1
+        - morte
         - bench
         - dhall
 
@@ -718,17 +735,11 @@ packages:
         - machines-directory
         - machines-io
         # - bloodhound # GHC 8.2.1
-        - esqueleto # bounds: persistent
+        - esqueleto
 
     "Adam Bergmark <adam@bergmark.nl> @bergmark":
         - HUnit
         - aeson
-        # - fay # bounds: traverse-with-class
-        # - fay-base # via: fay
-        # - fay-dom # via: fay
-        # - fay-jquery # via: fay
-        # - fay-text # via: fay
-        # - fay-uri # via: fay
         - feed
         - time-compat
         - through-text
@@ -743,8 +754,8 @@ packages:
 
     "Robert Klotzner <robert.klotzner@gmx.at> @eskimor":
         - purescript-bridge
-        # - servant-purescript # GHC 8.2.1
-        # - servant-subscriber # GHC 8.2.1
+        - servant-purescript
+        - servant-subscriber
 
     "Rodrigo Setti <rodrigosetti@gmail.com> @rodrigosetti":
         - messagepack
@@ -770,19 +781,18 @@ packages:
         # - homplexity # BLOCKED directory 1.3
         # - wordpass # bounds: vector
         # - json-autotype # bounds: aeson 1.0, lens
-        # - posix-realtime # https://github.com/mgajda/posix-realtime/issues/5
+        - posix-realtime < 0
 
     "Dom De Re <domdere@domdere.com> @domdere":
         - cassava-conduit
 
     "Dominic Steinitz <dominic@steinitz.org> @idontgetoutmuch":
         []
-        # - yarr # compilation error against fixed-vector https://github.com/leventov/yarr/issues/10
+        # - yarr # bounds template-haskell
         # - random-fu # via: log-domain, safecopy, bounds: vector
 
     "Ben Gamari <ben@smart-cactus.org> @bgamari":
-        []
-        # - vector-fftw # bounds: vector
+        - vector-fftw
 
     "Roman Cheplyaka <roma@ro-che.info> @feuerbach":
         - action-permutations
@@ -800,8 +810,8 @@ packages:
         - tasty-smallcheck
         - tasty-html
         - time-lens
-        # - timezone-olson # GHC 8.2.1
-        # - timezone-series # GHC 8.2.1
+        - timezone-olson # GHC 8.2.1
+        - timezone-series # GHC 8.2.1
         - traverse-with-class
         - tuples-homogenous-h98
 
@@ -819,12 +829,12 @@ packages:
 
     "Joachim Breitner <mail@joachim-breitner.de> @nomeata":
         - circle-packing
-        # - arbtt # GHC 8.2.1 via bytestring-progress
+        # - arbtt # via terminal-progress-bar
         # - ghc-heap-view # GHC 8.2.1
         # - tttool # GHC 8.2.1
         # - gipeda # via cassava: bounds: vector
         # - list-fusion-probe # GHC 8.2.1
-        # - haskell-spacegoo # GHC 8.2.1 via MemoTrie
+        - haskell-spacegoo
         - tasty-expected-failure
         # - RepLib # GHC 8.2.1
         # - unbound # GHC 8.2.1
@@ -833,11 +843,11 @@ packages:
         - HandsomeSoup
 
     "Clint Adams <clint@debian.org> @clinty":
-        # - hOpenPGP # via ixset-typed: via safecopy: bounds: vector
+        - hOpenPGP
         - openpgp-asciiarmor
         - MusicBrainz
         - DAV
-        # - hopenpgp-tools # via ixset-typed: via safecopy: bounds: vector
+        - hopenpgp-tools
         - opensource
 
     "Piyush P Kurur <ppk@cse.iitk.ac.in> @piyush-kurur":
@@ -866,11 +876,11 @@ packages:
         - biocore
         - biofasta
         - biofastq
-        # - biosff # 0.3.7.1 Compilation failure due to -Werror
+        - biosff < 0 # 0.3.7.1 compilation failure
         - blastxml
         - bioace
         - biopsl
-        # samtools # Compilation failure against c2hs https://github.com/ingolia/SamTools/issues/3
+        - samtools < 0 # compilation failure against c2hs https://github.com/ingolia/SamTools/issues/3
         - seqloc
         - bioalign
         - BlastHTTP
@@ -884,9 +894,9 @@ packages:
         - ClustalParser
         - EntrezHTTP
         - Genbank
-        # - RNAlien # via cassava: bounds: vector
+        - RNAlien
         - Taxonomy
-        # - TaxonomyTools # build failure
+        - TaxonomyTools < 0 # compilation failure
         - ViennaRNAParser
 
     "Silk <code@silk.co>":
@@ -905,7 +915,7 @@ packages:
         - rest-client
         - rest-core
         - rest-gen
-        # - rest-happstack # bounds happstack-server
+        - rest-happstack
         - rest-snap
         - rest-stringmap
         - rest-types
@@ -915,11 +925,11 @@ packages:
 
     "Simon Michael <simon@joyful.com> @simonmichael":
         # - darcs # bounds: graphviz < 2999.19
-        - hledger
-        - hledger-lib
+        # - hledger     # megaparsec bounds: https://github.com/fpco/stackage/issues/2666
+        # - hledger-lib # megaparsec bounds: https://github.com/fpco/stackage/issues/2666
         # - hledger-ui # bounds: brick
         # - hledger-web # GHC 8.2.1 via yesod-form
-        # - hledger-api # GHC 8.2.1
+        # - hledger-api # megaparsec bounds: https://github.com/fpco/stackage/issues/2666
         # - shelltestrunner # bounds: Diff, HUnit
         - quickbench
         - regex-compat-tdfa
@@ -928,9 +938,9 @@ packages:
         - io-manager
 
     "Dimitri Sabadie <dimitri.sabadie@gmail.com> @phaazon":
-        # - al # FIXME temporary, figure out why it's not working with stackage-build
+        - al < 0 # Setup failure, needs old c2hs
         - event
-        # - hid # GHC 8.2.1 via c2hs
+        - hid # GHC 8.2.1 via c2hs
         # - luminance # BLOCKED directory 1.3
         # - luminance-samples # bounds: base
         - monad-journal
@@ -957,7 +967,7 @@ packages:
         - holy-project
         - wai-middleware-caching
         - wai-middleware-caching-lru
-        # - wai-middleware-caching-redis # GHC 8.2.1 via hedis
+        - wai-middleware-caching-redis
         # not package maintainer
         - ekg
         - ekg-json
@@ -966,15 +976,15 @@ packages:
         - mysql
         - mysql-simple
         - sphinx
-        # - xmlhtml # bounds: blaze-html, blaze-markup
-        # - yesod-auth-hashdb # GHC 8.2.1 via yesod-auth
+        - xmlhtml
+        - yesod-auth-hashdb
 
     "Toralf Wittner <tw@dtex.org> @twittner":
         - bytestring-conversion
         - cql
         - cql-io
         - redis-resp
-        # - redis-io # GHC 8.2.1 via hedis
+        - redis-io
         - swagger
         - tinylog
         - wai-predicates
@@ -1006,7 +1016,7 @@ packages:
         - bytestring-trie
         - data-accessor
         - data-accessor-mtl
-        # - file-location # bounds: transformers
+        - file-location < 0
         - fuzzcheck
         - here
         - hlibgit2
@@ -1033,15 +1043,15 @@ packages:
     "Nikita Volkov <nikita.y.volkov@mail.ru> @nikita-volkov":
         - base-prelude
         - cases
-        # - focus # GHC 8.2.1
-        # - hasql # https://github.com/nikita-volkov/hasql/issues/76
-        # - hasql-pool # https://github.com/nikita-volkov/hasql/issues/76
-        # - list-t # GHC 8.2.1
+        - focus
+        - hasql
+        - hasql-pool
+        - list-t
         - mtl-prelude
         - neat-interpolation
         - partial-handler
         - postgresql-binary
-        # - slave-thread # GHC 8.2.1
+        - slave-thread
         - stm-containers
         - refined
 
@@ -1049,23 +1059,23 @@ packages:
         - prefix-units
 
     "Alexander Thiemann <mail@athiemann.net> @agrafix":
-       # - Spock # GHC 8.2.1
+       - Spock
        - Spock-core
        - Spock-api
        - Spock-api-server
        # - Spock-digestive # via: digestive-functors
-       # - Spock-worker # GHC 8.2.1
+       - Spock-worker
        - graph-core
        - hvect
        - reroute
        - users
-       # - users-persistent # via: esqueleto
+       - users-persistent
        - users-postgresql-simple
        - users-test
        - validate-input
        - ignore
        # - elm-bridge # bounds: aeson
-       # digestive-bootstrap # via: digestive-functors, digestive-functors-blaze
+       # - digestive-bootstrap # via: digestive-functors, digestive-functors-blaze
        - blaze-bootstrap
        - dataurl
        - psql-helpers
@@ -1075,8 +1085,8 @@ packages:
        - async-extra
        - format-numbers
        - highjson
-       # - highjson-swagger # GHC 8.2.1 via swagger2
-       # - highjson-th # GHC 8.2.1 via swagger2
+       - highjson-swagger
+       - highjson-th
        # - superrecord # GHC 8.2.1 via bookkeeper
        - fileplow
 
@@ -1098,8 +1108,7 @@ packages:
         - ghcjs-perch
 
     "Sebastian Nagel <sebastian.nagel@ncoding.at> @ch1bo":
-        []
-        # - hdevtools # https://github.com/hdevtools/hdevtools/issues/57
+        - hdevtools < 0 # Compilation failure https://github.com/hdevtools/hdevtools/issues/57
 
     "Andrey Chudnov <oss@chudnov.com> @achudnov":
         []
@@ -1117,22 +1126,22 @@ packages:
         - bank-holidays-england
 
     "Haskell Servant <jkarni@gmail.com>":
-        - servant # GHC 8.2.1
-        - servant-client # GHC 8.2.1
-        - servant-docs # GHC 8.2.1
-        - servant-js # GHC 8.2.1
-        - servant-server # GHC 8.2.1
-        - servant-lucid # GHC 8.2.1
-        - servant-blaze # GHC 8.2.1
-        - servant-foreign # GHC 8.2.1
-        - servant-mock # GHC 8.2.1
-        - servant-cassava # GHC 8.2.1
+        - servant
+        - servant-client
+        - servant-docs
+        - servant-js
+        - servant-server
+        - servant-lucid
+        - servant-blaze
+        - servant-foreign
+        - servant-mock
+        - servant-cassava
 
     "Alexandr Ruchkin <voidex@live.com> @mvoidex":
         # - hdocs # GHC 8.2.1 via haddock-api 2.18.1
         - hformat
         # - hsdev # bounds: mmorph
-        # - simple-log # GHC 8.2.1
+        - simple-log
         - text-region
 
     "Aleksey Kliger <aleksey@lambdageek.org> @lambdageek":
@@ -1159,13 +1168,12 @@ packages:
 
     "Jens Petersen <juhpetersen@gmail.com> @juhp":
         # - cabal-rpm # GHC 8.2.1
-        # - stackage-query # BLOCKED stackage-types/Cabal 2.0
+        # - stackage-query # via stackage-types compilation failure
         # - cabal-sort # BLOCKED directory 1.3
         # - idris # bounds aeson
         - libffi
         - xmonad-contrib
         - shelly
-
         # - cairo # Cabal 2.0.0.2
         # - gio # Cabal 2.0.0.2
         # - glib # Cabal 2.0.0.2
@@ -1175,22 +1183,21 @@ packages:
         # - pango # Cabal 2.0.0.2
         # - webkitgtk3 # Cabal 2.0.0.2
         # - webkitgtk3-javascriptcore # Cabal 2.0.0.2
-
         - ghcjs-codemirror
-        # - ghcjs-dom # via: ghcjs-dom-jsaddle # https://github.com/fpco/stackage/issues/1569
-        # - jsaddle # via: ret-tf # https://github.com/fpco/stackage/issues/1569
+        - ghcjs-dom
+        - jsaddle
         # - leksah-server # bounds: ghc, base
         # - ltk # bounds: ghc, base
-        # - vado # GHC 8.2.1
-        # - vcsgui # via: gi-gtk-hs
-        # - vcswrapper # GHC 8.2.1
+        - vado
+        # - vcsgui # via: gi-gtk-hs compilation failure
+        - vcswrapper
 
     "Renzo Carbonara <renzocarbonara@gmail.com> @k0001":
         - network-simple
-        # - pipes-aeson # bounds: pipes 4.3
-        # - pipes-attoparsec # bounds: pipes 4.3
+        - pipes-aeson
+        - pipes-attoparsec
         # - pipes-binary # bounds: binary, pipes, transformers
-        # - pipes-network # bounds: pipes 4.3
+        - pipes-network
 
     "Tomas Carnecky @wereHamster":
         - avers
@@ -1279,19 +1286,19 @@ packages:
         - github
         - insert-ordered-containers
         - integer-logarithms
-        # - JuicyPixels-scale-dct # GHC 8.2.1
+        - JuicyPixels-scale-dct
         - lattices
         - microstache
-        # - monad-http # GHC 8.2.1
+        - monad-http
         - postgresql-simple-url
         - range-set-list
         - regex-applicative-text
-        # - servant-swagger-ui # GHC 8.2.1
-        # - servant-yaml # GHC 8.2.1
+        - servant-swagger-ui
+        - servant-yaml
         - singleton-bool
         - spdx
         - splitmix
-        - tdigest
+        # - tdigest
         # - tdigest-Chart # bounds: optparse-applicative
         - these
         - time-parsers
@@ -1317,13 +1324,13 @@ packages:
         # Regex packages by Chris Kuklewicz
         - regex-base
         - regex-compat
-        # - regex-dfa # 0.91 Compilation failure due to -Werror
-        # - regex-parsec # 0.90 Compilation failure due to -Werror
+        - regex-dfa < 0 # 0.91 Compilation failure due to -Werror
+        - regex-parsec < 0 # 0.90 Compilation failure due to -Werror
         - regex-pcre
         - regex-posix
         - regex-tdfa
-        # regex-tdfa-utf8 # bounds: ghc, base
-        # - regex-tre # 0.91 Compilation failure due to -Werror
+        # - regex-tdfa-utf8 # bounds: ghc, base
+        - regex-tre < 0 # 0.91 Compilation failure due to -Werror
 
         # Universe
         - universe
@@ -1337,10 +1344,10 @@ packages:
         - farmhash
         - pinch
         - sandman
-        - language-thrift
+        # - language-thrift # megaparsec bounds: https://github.com/fpco/stackage/issues/2666
 
     "Adam C. Foltzer <acfoltzer@galois.com> @acfoltzer":
-        # - cryptol # bounds: sbv
+        - cryptol
         - gitrev
         - persistent-refs
 
@@ -1437,103 +1444,103 @@ packages:
         - amazonka-waf
         - amazonka-workspaces
         - amazonka-xray
-        # - gogol # GHC 8.2.1
-        # - gogol-core # GHC 8.2.1
-        # - gogol-adexchange-buyer # GHC 8.2.1
-        # - gogol-adexchange-seller # GHC 8.2.1
-        # - gogol-admin-datatransfer # GHC 8.2.1
-        # - gogol-admin-directory # GHC 8.2.1
-        # - gogol-admin-emailmigration # GHC 8.2.1
-        # - gogol-admin-reports # GHC 8.2.1
-        # - gogol-adsense # GHC 8.2.1
-        # - gogol-adsense-host # GHC 8.2.1
-        # - gogol-affiliates # GHC 8.2.1
-        # - gogol-analytics # GHC 8.2.1
-        # - gogol-android-enterprise # GHC 8.2.1
-        # - gogol-android-publisher # GHC 8.2.1
-        # - gogol-appengine # GHC 8.2.1
-        # - gogol-apps-activity # GHC 8.2.1
-        # - gogol-apps-calendar # GHC 8.2.1
-        # - gogol-apps-licensing # GHC 8.2.1
-        # - gogol-apps-reseller # GHC 8.2.1
-        # - gogol-apps-tasks # GHC 8.2.1
-        # - gogol-appstate # GHC 8.2.1
-        # - gogol-autoscaler # GHC 8.2.1
-        # - gogol-bigquery # GHC 8.2.1
-        # - gogol-billing # GHC 8.2.1
-        # - gogol-blogger # GHC 8.2.1
-        # - gogol-books # GHC 8.2.1
-        # - gogol-civicinfo # GHC 8.2.1
-        # - gogol-classroom # GHC 8.2.1
-        # - gogol-cloudmonitoring # GHC 8.2.1
-        # - gogol-cloudtrace # GHC 8.2.1
-        # - gogol-compute # GHC 8.2.1
-        # - gogol-container # GHC 8.2.1
-        # - gogol-customsearch # GHC 8.2.1
-        # - gogol-dataflow # GHC 8.2.1
-        # - gogol-dataproc # GHC 8.2.1
-        # - gogol-datastore # GHC 8.2.1
-        # - gogol-debugger # GHC 8.2.1
-        # - gogol-deploymentmanager # GHC 8.2.1
-        # - gogol-dfareporting # GHC 8.2.1
-        # - gogol-discovery # GHC 8.2.1
-        # - gogol-dns # GHC 8.2.1
-        # - gogol-doubleclick-bids # GHC 8.2.1
-        # - gogol-doubleclick-search # GHC 8.2.1
-        # - gogol-drive # GHC 8.2.1
-        # - gogol-firebase-rules # GHC 8.2.1
-        # - gogol-fitness # GHC 8.2.1
-        # - gogol-fonts # GHC 8.2.1
-        # - gogol-freebasesearch # GHC 8.2.1
-        # - gogol-fusiontables # GHC 8.2.1
-        # - gogol-games # GHC 8.2.1
-        # - gogol-games-configuration # GHC 8.2.1
-        # - gogol-games-management # GHC 8.2.1
-        # - gogol-genomics # GHC 8.2.1
-        # - gogol-gmail # GHC 8.2.1
-        # - gogol-groups-migration # GHC 8.2.1
-        # - gogol-groups-settings # GHC 8.2.1
-        # - gogol-identity-toolkit # GHC 8.2.1
-        # - gogol-kgsearch # GHC 8.2.1
-        # - gogol-latencytest # GHC 8.2.1
-        # - gogol-logging # GHC 8.2.1
-        # - gogol-maps-coordinate # GHC 8.2.1
-        # - gogol-maps-engine # GHC 8.2.1
-        # - gogol-mirror # GHC 8.2.1
-        # - gogol-monitoring # GHC 8.2.1
-        # - gogol-oauth2 # GHC 8.2.1
-        # - gogol-pagespeed # GHC 8.2.1
-        # - gogol-partners # GHC 8.2.1
-        # - gogol-people # GHC 8.2.1
-        # - gogol-play-moviespartner # GHC 8.2.1
-        # - gogol-plus # GHC 8.2.1
-        # - gogol-plus-domains # GHC 8.2.1
-        # - gogol-prediction # GHC 8.2.1
-        # - gogol-proximitybeacon # GHC 8.2.1
-        # - gogol-pubsub # GHC 8.2.1
-        # - gogol-qpxexpress # GHC 8.2.1
-        # - gogol-replicapool # GHC 8.2.1
-        # - gogol-replicapool-updater # GHC 8.2.1
-        # - gogol-resourcemanager # GHC 8.2.1
-        # - gogol-resourceviews # GHC 8.2.1
-        # - gogol-script # GHC 8.2.1
-        # - gogol-sheets # GHC 8.2.1
-        # - gogol-shopping-content # GHC 8.2.1
-        # - gogol-siteverification # GHC 8.2.1
-        # - gogol-spectrum # GHC 8.2.1
-        # - gogol-sqladmin # GHC 8.2.1
-        # - gogol-storage # GHC 8.2.1
-        # - gogol-storage-transfer # GHC 8.2.1
-        # - gogol-tagmanager # GHC 8.2.1
-        # - gogol-taskqueue # GHC 8.2.1
-        # - gogol-translate # GHC 8.2.1
-        # - gogol-urlshortener # GHC 8.2.1
-        # - gogol-useraccounts # GHC 8.2.1
-        # - gogol-vision # GHC 8.2.1
-        # - gogol-webmaster-tools # GHC 8.2.1
-        # - gogol-youtube # GHC 8.2.1
-        # - gogol-youtube-analytics # GHC 8.2.1
-        # - gogol-youtube-reporting # GHC 8.2.1
+        - gogol
+        - gogol-core
+        - gogol-adexchange-buyer
+        - gogol-adexchange-seller
+        - gogol-admin-datatransfer
+        - gogol-admin-directory
+        - gogol-admin-emailmigration
+        - gogol-admin-reports
+        - gogol-adsense
+        - gogol-adsense-host
+        - gogol-affiliates
+        - gogol-analytics
+        - gogol-android-enterprise
+        - gogol-android-publisher
+        - gogol-appengine
+        - gogol-apps-activity
+        - gogol-apps-calendar
+        - gogol-apps-licensing
+        - gogol-apps-reseller
+        - gogol-apps-tasks
+        - gogol-appstate
+        - gogol-autoscaler
+        - gogol-bigquery
+        - gogol-billing
+        - gogol-blogger
+        - gogol-books
+        - gogol-civicinfo
+        - gogol-classroom
+        - gogol-cloudmonitoring
+        - gogol-cloudtrace
+        - gogol-compute
+        - gogol-container
+        - gogol-customsearch
+        - gogol-dataflow
+        - gogol-dataproc
+        - gogol-datastore
+        - gogol-debugger
+        - gogol-deploymentmanager
+        - gogol-dfareporting
+        - gogol-discovery
+        - gogol-dns
+        - gogol-doubleclick-bids
+        - gogol-doubleclick-search
+        - gogol-drive
+        - gogol-firebase-rules
+        - gogol-fitness
+        - gogol-fonts
+        - gogol-freebasesearch
+        - gogol-fusiontables
+        - gogol-games
+        - gogol-games-configuration
+        - gogol-games-management
+        - gogol-genomics
+        - gogol-gmail
+        - gogol-groups-migration
+        - gogol-groups-settings
+        - gogol-identity-toolkit
+        - gogol-kgsearch
+        - gogol-latencytest
+        - gogol-logging
+        - gogol-maps-coordinate
+        - gogol-maps-engine
+        - gogol-mirror
+        - gogol-monitoring
+        - gogol-oauth2
+        - gogol-pagespeed
+        - gogol-partners
+        - gogol-people
+        - gogol-play-moviespartner
+        - gogol-plus
+        - gogol-plus-domains
+        - gogol-prediction
+        - gogol-proximitybeacon
+        - gogol-pubsub
+        - gogol-qpxexpress
+        - gogol-replicapool
+        - gogol-replicapool-updater
+        - gogol-resourcemanager
+        - gogol-resourceviews
+        - gogol-script
+        - gogol-sheets
+        - gogol-shopping-content
+        - gogol-siteverification
+        - gogol-spectrum
+        - gogol-sqladmin
+        - gogol-storage
+        - gogol-storage-transfer
+        - gogol-tagmanager
+        - gogol-taskqueue
+        - gogol-translate
+        - gogol-urlshortener
+        - gogol-useraccounts
+        - gogol-vision
+        - gogol-webmaster-tools
+        - gogol-youtube
+        - gogol-youtube-analytics
+        - gogol-youtube-reporting
         - ede
         - pagerduty
         - semver
@@ -1544,10 +1551,10 @@ packages:
 
     "Gershom Bazerman <gershomb@gmail.com> @gbaz":
         - jmacro
-        # - jmacro-rpc # GHC 8.2.1 via happstack-server
-        # - jmacro-rpc-happstack # GHC 8.2.1 via happstack-server
+        - jmacro-rpc
+        - jmacro-rpc-happstack
         - jmacro-rpc-snap
-        # - mbox # GHC 8.2.1
+        - mbox
         - kmeans
         - boolsimplifier
         - cubicspline
@@ -1565,7 +1572,7 @@ packages:
         - hmatrix-gsl-stats
         - hsignal
         - hstatistics
-        # - plot # Cabal 2.0.0.2
+        # - plot # Cabal 2.0.0.2 & via pango
         # - plot-gtk # Cabal 2.0.0.2
         # - plot-gtk3 # Cabal 2.0.0.2
         - vector-buffer
@@ -1589,14 +1596,13 @@ packages:
         - markdown-unlit
 
     "Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk> @Fuuzetsu":
-        []
-        # - aeson-schema # bounds: QuickCheck, aeson # compilation failure for 0.4.1.1
-        # - H # GHC 8.2.1 via c2hs
-        # - inline-r # GHC 8.2.1 via c2hs
+        - aeson-schema < 0 # bounds: QuickCheck, aeson # compilation failure for 0.4.1.1
+        - H < 0 # via inline-r compilation failure
+        - inline-r < 0 # compilation failure
 
-    # "David Fox <dsf@seereason.com> @ddssff":
-        # - debian # GHC bug: https://github.com/ddssff/debian-haskell/issues/6
-        # - cabal-debian # via: debian
+    "David Fox <dsf@seereason.com> @ddssff":
+        - debian < 0 # GHC bug: https://github.com/ddssff/debian-haskell/issues/6
+        - cabal-debian < 0 # compilation failure
 
     "Stefan Saasen <stefan@saasen.me> @juretta":
         - jwt
@@ -1621,11 +1627,11 @@ packages:
         # - lackey # GHC 8.2.1
         # - octane # GHC 8.2.1
         # - overloaded-records # Maintained by @trskop. # GHC 8.2.1
-        # - postgresql-simple-migration # Maintained by @ameingast. # GHC 8.2.1
-        # - ratel # GHC 8.2.1
-        # - ratel-wai # GHC 8.2.1
+        - postgresql-simple-migration # Maintained by @ameingast.
+        - ratel
+        - ratel-wai
         - rattletrap
-        # - strive # GHC 8.2.1
+        - strive
         - wuss
 
     "Marios Titas <redneb@gmx.com> @redneb":
@@ -1639,24 +1645,25 @@ packages:
         - linux-namespaces
 
     "Will Coster <willcoster@gmail.com> @fimad":
-        # - prometheus-client # GHC 8.2.1 via atomic-primops
-        # - prometheus-metrics-ghc # GHC 8.2.1 via prometheus-client
+        - prometheus-client
+        - prometheus-metrics-ghc
         - scalpel
         - scalpel-core
-        # - wai-middleware-prometheus # GHC 8.2.1 via prometheus-client
+        - wai-middleware-prometheus
 
     "William Casarin <bill@casarin.me> @jb55":
         - bson-lens
         - cased
         - elm-export
         - elm-export-persistent
-        # - pipes-csv # via cassava: bounds: vector
-        - pipes-mongodb # via mongoDB
-        # - servant-elm # GHC 8.2.1
+        - pipes-csv
+        - pipes-mongodb
+        - servant-elm
         - skeletons
         # - streaming-wai # bounds: mmorph
 
-    # "Smirnov Alexey <chemistmail@gmail.com> @chemist":
+    "Smirnov Alexey <chemistmail@gmail.com> @chemist":
+        []
         # - snmp # bounds: ghc, base
         # - agentx # bounds: ghc, base
 
@@ -1664,12 +1671,11 @@ packages:
         - annotated-wl-pprint
 
     "Yitz Gale <gale@sefer.org> @ygale":
-        []
-        # - timezone-series # GHC 8.2.1
-        # - timezone-olson # GHC 8.2.1 via timezone-series
+        - timezone-series
+        - timezone-olson
 
     "Josh Holland <josh@inv.alid.pw> @jshholland":
-        # - sandi # GHC 8.2.1
+        - sandi
         - data-ordlist
         - xmonad
 
@@ -1694,8 +1700,8 @@ packages:
 
     "Athan Clark <athan.clark@gmail.com> @athanclark":
         - commutative
-        # - digestive-functors-lucid # via: digestive functors
-        # - ltext # compilation failure: https://github.com/ltext/ltext/issues/22
+        # - digestive-functors-lucid # via: digestive-functors
+        - ltext < 0 # compilation failure: https://github.com/ltext/ltext/issues/22
         - markup
         # - nested-routes # via: HList
         - path-extra
@@ -1709,7 +1715,7 @@ packages:
         - composition-extra
         - rose-trees
         - sets
-        # - timemap # GHC 8.2.1
+        - timemap
         - tries
         - path-extra
         - pred-trie
@@ -1740,7 +1746,7 @@ packages:
 
     "Michael Thompson <what_is_it_to_do_anything@yahoo.com> @michaelt":
         - pipes-text
-        # - lens-simple # GHC 8.2.1 via lens-family-th
+        - lens-simple
         - lens-family-core
         - lens-family
         # - streaming # bounds: mmorph
@@ -1773,7 +1779,7 @@ packages:
     "Michael Xavier <michael@michaelxavier.net> @MichaelXavier":
         # - angel # https://github.com/MichaelXavier/Angel/issues/52
         - uri-bytestring
-        # - phash # Can't build on stackage server https://github.com/MichaelXavier/phash/issues/5
+        # - phash # Setup failure, can't build on stackage server https://github.com/MichaelXavier/phash/issues/5
         - cron
         - tasty-tap
         - tasty-fail-fast
@@ -1782,7 +1788,7 @@ packages:
 
     "Lars Kuhtz <lakuhtz@gmail.com> @larskuhtz":
         - wai-cors
-        # - configuration-tools # https://github.com/alephcloud/hs-configuration-tools/issues/56
+        - configuration-tools
 
     "Sam Rijs <srijs@airpost.net> @srijs":
         - ndjson-conduit
@@ -1796,8 +1802,8 @@ packages:
 
     "Daniel Patterson <dbp@dbpmail.net> @dbp":
         # - hspec-snap # bounds: hspec, hspec-core # via: digestive-functors
-        # - hworker # GHC 8.2.1 via hedis
-        # - hworker-ses # 0.1.1.0 build failure
+        - hworker
+        - hworker-ses < 0 # 0.1.1.0 compilation failure
         - fn
         # - fn-extra # via: digestive-functors
 
@@ -1806,10 +1812,10 @@ packages:
         - cassette
         - choice
         - distributed-closure
-        # - H # GHC 8.2.1 via c2hs
-        # - inline-r # GHC 8.2.1 via c2hs
-        # - jni # GHC 8.2.1 via atomic-primops
-        # - jvm # GHC 8.2.1 via jni
+        - H < 0 # compilation failure
+        - inline-r < 0 # compilation failure
+        - jni
+        - jvm < 0 # compilation failure
         # - sparkle # bounds: mmorph
         # - streaming-binary # bounds: mmorph
         - th-lift
@@ -1819,12 +1825,13 @@ packages:
         - hsebaysdk
         - dockerfile
         # - wai-middleware-throttle # GHC 8.2.1 via token-bucket
-        # - yesod-auth-basic # GHC 8.2.1 via yesod
+        - yesod-auth-basic
 
-    # "Alcides Viamontes <a.viamontes.esquivel@gmail.com> @alcidesv":
+    "Alcides Viamontes <a.viamontes.esquivel@gmail.com> @alcidesv":
+        []
         # - second-transfer # bounds: GHC 8
 
-    # "Hirotomo Moriwaki <philopon.dependence@gmail.com> @philopon":
+    "Hirotomo Moriwaki <philopon.dependence@gmail.com> @philopon":
         # - apiary # GHC 8 & bounds
         # - apiary-logger # GHC 8 & bounds
         # - apiary-persistent # GHC 8 & bounds
@@ -1840,7 +1847,7 @@ packages:
         # - web-routing # GHC 8
         # - bytestring-read # GHC 8
         # - memcached-binary # GHC 8 & bounds
-        # - barrier # GHC 8
+        - barrier
         # - haddocset # GHC 8
 
     "Kai Zhang <kai@kzhang.org> @kaizhang":
@@ -1854,20 +1861,20 @@ packages:
         - Spintax
         - glabrous
         - google-oauth2-jwt
-        # - IPv6DB # GHC 8.2.1 via hedis
+        - IPv6DB
 
     "koral koral@mailoo.org @k0ral":
-        # - atom-conduit # GHC 8.2.1 via lens-simple
+        - atom-conduit
         - conduit-parse
-        # - opml-conduit # GHC 8.2.1 via lens-simple
-        # - rss-conduit # GHC 8.2.1 via lens-simple
-        # - imm # GHC 8.2.1 via lens-simple
+        - opml-conduit
+        - rss-conduit < 0 # test runtime failure
+        - imm < 0 # compilation failure via synthesizer-core
         - timerep
         - xml-conduit-parse
 
     "Kostiantyn Rybnikov <k-bx@k-bx.com> @k-bx":
         - protocol-buffers
-        # - hprotoc # build failure https://github.com/k-bx/protocol-buffers/issues/45
+        - hprotoc < 0 # compilation failure https://github.com/k-bx/protocol-buffers/issues/45
         - protocol-buffers-descriptor
         - ekg-core
         - digits
@@ -1875,24 +1882,24 @@ packages:
         - iso3166-country-codes
         - iso639
         - murmur-hash
-        # - monoidal-containers # GHC 8.2.1
+        - monoidal-containers
         - regex-pcre
         - string-combinators
         - string-class
         - SHA
         - data-ordlist
-        # - hedis # GHC 8.2.1 via slave-thread
+        - hedis
 
     "Rob O'Callahan ropoctl@gmail.com @rcallahan":
-        # - pipes-fastx # via pipes-attoparsec
+        - pipes-fastx
         # - pipes-illumina # via: pipes-bgzf
         - seqalign
         - thermonuc
-        # - xlsior # https://github.com/eurekagenomics/xlsior/issues/3
+        - xlsior < 0 # compilation failure https://github.com/eurekagenomics/xlsior/issues/3
 
     "John Lenz <wuzzeb@gmail.com> @wuzzeb":
-        # - yesod-auth-account # GHC 8.2.1 via yesod-auth
-        # - yesod-static-angular # GHC 8.2.1 via yesod
+        - yesod-auth-account < 0 # test compilation failure
+        - yesod-static-angular
         - hspec-webdriver
         - webdriver-angular
 
@@ -1901,16 +1908,15 @@ packages:
         - type-spec
         - pretty-types
         # - mediabus # GHC 8.2.1
-        #- mediabus-fdk-aac # needs non-free libfdk-aac-dev
+        # - mediabus-fdk-aac # needs non-free libfdk-aac-dev
         # - mediabus-rtp # GHC 8.2.1
 
-    # "Will Thompson <will@willthompson.co.uk> @wjt":
-        # - bustle # build failure against haskell-src-exts https://github.com/vasylp/hgettext/issues/10
+    "Will Thompson <will@willthompson.co.uk> @wjt":
+        - bustle < 0 # compilation failure against haskell-src-exts https://github.com/vasylp/hgettext/issues/10
 
     "Jakub Fijałkowski <kuba@codinginfinity.me> @jakubfijalkowski":
-        []
-        # - hlibsass # https://github.com/jakubfijalkowski/hlibsass/issues/7
-        # - hsass # via hlibsass
+        - hlibsass
+        - hsass
 
     "Robert Massaioli <robertmassaioli@gmail.com> @robertmassaioli":
         - range
@@ -1927,7 +1933,7 @@ packages:
         - dotenv
         - hapistrano
         - inflections
-        # - stache # GHC 8.2.1
+        - stache
         # - twitter-feed # GHC 8.2.1
 
     "Sergey Alirzaev <zl29ah@gmail.com> @l29ah":
@@ -1936,16 +1942,16 @@ packages:
         - Network-NineP
 
     "Oliver Charles <ollie@ocharles.org.uk> @ocharles":
-        # - engine-io # bounds: aeson, websockets
+        - engine-io < 0 # compilation failure
         - diff3
         # - digestive-functors-aeson # bounds: aeson, lens # via: digestive-functors
         - exhaustive
         - libsystemd-journal
         - network-carbon
-        # - socket-io # bounds: aeson, via: engine-io
+        # - socket-io # via engine-io compilation-failure
         - tasty-rerun
         # - logging-effect # GHC 8.2.1
-        # - reactive-banana # GHC 8.2.1
+        - reactive-banana
 
     "Antoni Silvestre <antoni.silvestre@gmail.com> @asilvestre":
         # Test suite needs a running neo4j server with auth disabled
@@ -1966,9 +1972,9 @@ packages:
         - abstract-deque
         - abstract-deque-tests
         - abstract-par
-        # - atomic-primops # GHC 8.2.1
+        - atomic-primops
         - base-orphans
-        # - chaselev-deque # GHC 8.2.1 via atomic-primops
+        - chaselev-deque
         - code-page
         - deriving-compat
         - echo
@@ -1985,20 +1991,20 @@ packages:
         - text-show
         - text-show-instances
         - th-abstraction
-        # - thread-local-storage # GHC 8.2.1 via atomic-primops
+        - thread-local-storage
 
     "Kirill Zaborsky <qrilka@gmail.com> @qrilka":
         - xlsx
 
     "Matt Parsons <parsonsmatt@gmail.com> @parsonsmatt":
         - monad-logger-prefix
-        # - monad-metrics # GHC 8.2.1 via ekg-core
+        - monad-metrics
 
     "Matthew Pickering <matthewtpickering@gmail.com> @mpickering":
         - refact
-        # - apply-refact
+        - apply-refact
 
-    # "Andrew Gibiansky <andrew.gibiansky@gmail.com> @gibiansky":
+    "Andrew Gibiansky <andrew.gibiansky@gmail.com> @gibiansky":
         # - ihaskell # GHC 8
         # - ihaskell-aeson # via: ihaskell
         # - ihaskell-basic # via: ihaskell
@@ -2011,7 +2017,7 @@ packages:
         # - ihaskell-rlangqq # via: ihaskell
         # - ihaskell-static-canvas # via: ihaskell
         # - ghc-parser # GHC 8
-        # - ipython-kernel # GHC 8
+        - ipython-kernel # GHC 8
 
     "Andrés Sicard-Ramírez <asr@eafit.edu.co> @asr":
         []
@@ -2019,7 +2025,7 @@ packages:
 
     "James Cook <mokus@deepbondi.net> @mokus0":
         - dependent-sum
-        # - dependent-sum-template # bounds: dependent-sum
+        - dependent-sum-template
         - dependent-map
         # - dice # via random-fu: via log-domain: via safecopy: bounds: vector
         - hstatsd
@@ -2028,7 +2034,7 @@ packages:
     "Timo von Holtz <tvh@tvholtz.de> @tvh":
         - ekg-wai
         - haxl-amazonka
-        # - hasql-migration # https://github.com/nikita-volkov/hasql/issues/76
+        - hasql-migration
         - servant-JuicyPixels
 
     "Artyom <yom@artyom.me> @neongreen":
@@ -2080,15 +2086,15 @@ packages:
 
     "Michael Walker <mike@barrucadu.co.uk> @barrucadu":
         - both
-        # - concurrency # GHC 8.2.1 via atomic-primops
+        - concurrency # GHC 8.2.1 via atomic-primops
         - dpor
-        # - dejafu # GHC 8.2.1
-        # - async-dejafu # GHC 8.2.1
-        # - hunit-dejafu # GHC 8.2.1
-        # - tasty-dejafu # GHC 8.2.1
+        - dejafu
+        - async-dejafu
+        - hunit-dejafu
+        - tasty-dejafu
         - irc-ctcp
-        # - irc-conduit # GHC 8.2.1
-        # - irc-client # GHC 8.2.1
+        - irc-conduit
+        - irc-client
 
     "Rudy Matela <rudy@matela.com.br> @rudymatela":
         - leancheck
@@ -2103,19 +2109,19 @@ packages:
         - emailaddress
         - envelope
         - from-sum
-        # - hailgun # GHC 8.2.1
-        # - hailgun-simple # GHC 8.2.1
+        - hailgun
+        - hailgun-simple
         # - highlight # GHC 8.2.1 via regex-with-pcre
         # - ig # bounds: http-conduit, transformers
         - natural-transformation
         # - opaleye-trans # GHC 8.2.1
         - pretty-simple
         - read-env-var
-        # - servant-checked-exceptions # GHC 8.2.1
-        # - servant-static-th # GHC 8.2.1
+        - servant-checked-exceptions
+        - servant-static-th
         - xml-html-qq
         - xml-indexed-cursor
-        # - yahoo-finance-api # GHC 8.2.1
+        - yahoo-finance-api
         # - yesod-markdown # bounds: skylighting
 
     "Franklin Chen <franklinchen@franklinchen.com> @FranklinChen":
@@ -2156,7 +2162,8 @@ packages:
         []
         # - GPipe-GLFW # GHC 8.2.1 via GLFW-b
 
-    # "Csaba Hruska <csaba.hruska@gmail.com> @csabahruska":
+    "Csaba Hruska <csaba.hruska@gmail.com> @csabahruska":
+        []
         # - lambdacube-ir # bounds: aeson
         # - lambdacube-gl # bounds: aeson, time # via: lambdacube-ir
         # - lambdacube-compiler # bounds: aeson, megaparsec # via: lambdacube-ir
@@ -2165,8 +2172,7 @@ packages:
         - Xauth
 
     "Sebastian de Bellefon <arnaudpourseb@gmail.com> @Helkafen":
-        []
-        # - wai-middleware-metrics # GHC 8.2.1 via ekg-core
+        - wai-middleware-metrics
 
     "Stefan Berthold":
         []
@@ -2181,7 +2187,8 @@ packages:
         - http-common
         - http-streams
 
-    # "Devan Stormont <stormont@gmail.com> @stormont":
+    "Devan Stormont <stormont@gmail.com> @stormont":
+        []
         # - forecast-io # bounds: aeson 1.0
 
     "Sean Hunt <scshunt@csclub.uwaterloo.ca @scshunt":
@@ -2189,7 +2196,7 @@ packages:
 
     "Ivan Miljenovic <Ivan.Miljenovic@gmail.com> @ivan-m":
         - fgl
-        # - fgl-arbitrary # bouns: QuickCheck
+        # - fgl-arbitrary # bounds: QuickCheck
         - graphviz
         - wl-pprint-text
         - servant-pandoc
@@ -2203,7 +2210,7 @@ packages:
         - cabal2nix
         - funcmp
         - hackage-db
-        - hledger-interest
+        # - hledger-interest  # megaparsec bounds: https://github.com/fpco/stackage/issues/2666
         - hopenssl
         - hsdns
         - hsemail
@@ -2217,11 +2224,10 @@ packages:
 
     "Mark Fine <mark.fine@gmail.com> @markfine":
         - postgresql-schema
-        # - sbp # build failure
+        - sbp
 
     "Jinjing Wang <nfjinjing@gmail.com> @nfjinjing":
-        []
-        # - moesocks # https://github.com/nfjinjing/moesocks/issues/1
+        - moesocks
 
     "Gregory W. Schwartz <gregory.schwartz@drexel.edu> @GregorySchwartz":
         - fasta
@@ -2232,7 +2238,7 @@ packages:
         - clumpiness
         - find-clumpiness
         - blosum
-        # - convert-annotation # via cassava: bounds: vector
+        # - convert-annotation # via inline-r compilation failure
         # - rank-product # GHC 8.2.1 via random-fu
 
     "Simon Marechal <bartavelle@gmail.com> @bartavelle":
@@ -2243,7 +2249,7 @@ packages:
         - strict-base-types
         - withdependencies
         - hruby
-        # - language-puppet
+        - language-puppet
         - tar-conduit
         # - stm-firehose # bounds: http-types, stm-conduit, transformers, wai, warp
         # - hslogstash # bounds: aeson, lens, time, transformers # via: stm-firehose
@@ -2264,17 +2270,18 @@ packages:
         - tagged-identity
         - req
         - req-conduit
-        # - cue-sheet # https://github.com/mrkkrp/cue-sheet/issues/4
+        - cue-sheet
         - wave
         - flac
         - flac-picture
         - lame
         - path
         - forma
-        # - stache # GHC 8.2.1
+        - stache
         - parser-combinators
 
-    # "Thomas Bereknyei <tomberek@gmail.com>":
+    "Thomas Bereknyei <tomberek@gmail.com>":
+        []
         # - multiplate # bounds: transformers
 
     "Sumit Sahrawat <sumit.sahrawat.apm13@iitbhu.ac.in> @sumitsahrawat":
@@ -2288,11 +2295,10 @@ packages:
         - slack-web
 
     "Nickolay Kudasov <nickolay.kudasov@gmail.com> @fizruk":
-        []
-        # - http-api-data # GHC 8.2.1 via uri-bytestring
-        # - smsaero # build failure against aeson https://github.com/GetShopTV/smsaero/issues/12
-        # - swagger2 # GHC 8.2.1
-        # - servant-swagger # GHC 8.2.1
+        - http-api-data
+        - smsaero < 0 # compilation failure against aeson https://github.com/GetShopTV/smsaero/issues/12
+        - swagger2
+        - servant-swagger
 
     "Jared Tobin <jared@jtobin.ca> @jtobin":
         - mwc-probability
@@ -2305,41 +2311,38 @@ packages:
         - flat-mcmc
 
     "Facundo Domínguez <facundo.dominguez@tweag.io> @facundominguez":
-        # - distributed-process # bounds: syb
-        # - distributed-process-async # GHC 8
-        # - distributed-process-client-server # GHC 8
-        # - distributed-process-execution # GHC 8
-        # - distributed-process-extras # GHC 8
-        # - distributed-process-registry # GHC 8
-        # - distributed-process-supervisor # GHC 8
-        # - distributed-process-task # GHC 8
-        # - distributed-process-simplelocalnet # via: distributed-process
-        # - distributed-static # https://github.com/haskell-distributed/rank1dynamic/issues/18
+        - distributed-process
+        - distributed-process-tests
+        - distributed-process-simplelocalnet
+        - distributed-static
         - network-transport
-        # - network-transport-tcp # bounds: network-transport
-        # - network-transport-inmemory # bounds: network-transport
-        # - network-transport-composed # bounds: network-transport
-        # - rank1dynamic # https://github.com/haskell-distributed/rank1dynamic/issues/18
+        - network-transport-tests
+        - network-transport-tcp
+        - network-transport-inmemory
+        - network-transport-composed
+        - rank1dynamic
 
-    # "Alexander Vershilov <alexander.vershilov@tweag.io> @qnikst":
+    "Alexander Vershilov <alexander.vershilov@tweag.io> @qnikst":
+        []
         # - imagemagick # https://github.com/qnikst/imagemagick/issues/41
         # - network-transport-zeromq # bounds: ghc # via: distributed-process-tests
 
     "Takahiro Himura <himuratk421@gmail.com> @thimura":
         - lens-regex
-        # https://github.com/himura/twitter-conduit/issues/56
-        # - twitter-conduit # Cabal 2.0
+        - twitter-conduit
         - twitter-types
         - twitter-types-lens
 
-    # "Robbin C. <robbinch33@gmail.com> robbinch":
+    "Robbin C. <robbinch33@gmail.com> @robbinch":
+        []
         # - zim-parser # via: lzma
 
     "David Wiltshire <david.wiltshire@metark.com> @dave77":
         # on behalf of Alexey Karakulov @w3rs
         - hashable-time
 
-    # "Tim Baumann <tim@timbaumann.info> @timjb":
+    "Tim Baumann <tim@timbaumann.info> @timjb":
+        []
         # - engine-io-yesod # bounds: ghc, base
 
     "Tim McGilchrist <timmcgil@gmail.com> @tmcgilchrist":
@@ -2369,7 +2372,7 @@ packages:
         # - cacophony # GHC 8.2.1
         # - pipes-cacophony # GHC 8.2.1
         - blake2
-        # - nfc # GHC 8.2.1 via c2hs
+        - nfc
 
     "Adam Curtis <kallisti.dev@gmail.com> @kallisti-dev":
         - webdriver
@@ -2379,12 +2382,12 @@ packages:
         - inline-c-cpp
         - ekg
 
-    # "Emin Karayel <me@eminkarayel.de> @ekarayel":
+    "Emin Karayel <me@eminkarayel.de> @ekarayel":
+        []
         # - sync-mht # bounds: ghc, base
 
     "Michael Schröder <mc.schroeder@gmail.com> @mcschroeder":
-        []
-        # - ctrie # GHC 8.2.1 via atomic-primops
+        - ctrie
         # - ttrie # GHC 8.2.1 via atomic-primops
 
     "Greg Weber <greg@gregweber.info> @gregwebs":
@@ -2395,32 +2398,33 @@ packages:
         - exp-pairs
 
     "Stefan Kersten <kaoskorobase@gmail.com> @kaoskorobase":
-        []
-        # - hsndfile # GHC 8.2.1 via c2hs
-        # - hsndfile-vector # GHC 8.2.1 via c2hs
+        - hsndfile
+        - hsndfile-vector
 
     "yihuang <yi.codeplayer@gmail.com> @yihuang":
         - tagstream-conduit
 
-    # "Johannes Hilden <hildenjohannes@gmail.com> @johanneshilden":
-        # - hashids # Missing test files https://github.com/fpco/stackage/issues/1001
+    "Johannes Hilden <hildenjohannes@gmail.com> @johanneshilden":
+        - hashids
 
-    # "Joe Hermaszewski <stackage@monoid.al> @expipiplus1":
+    "Joe Hermaszewski <stackage@monoid.al> @expipiplus1":
+        []
         # - exact-real # bounds: ghc, base
 
-    # "Jonatan Sundqvist jonatanhsundqvist@gmail.com @SwiftsNamesake":
+    "Jonatan Sundqvist jonatanhsundqvist@gmail.com @SwiftsNamesake":
+        []
         # - Cartesian # bounds: lens
         # - Michelangelo # bounds: lens # via: Wavefront
 
-    # "Henry J. Wylde <public@hjwylde.com> @hjwylde":
+    "Henry J. Wylde <public@hjwylde.com> @hjwylde":
+        []
         # - git-fmt # bounds: optparse-applicative 0.13
         # - omnifmt # bounds: optparse-applicative 0.13
         # - werewolf # bounds: aeson, extra, lens
         # - werewolf-slack # bounds: aeson, extra, http-client, http-client-tls # via: werewolf
 
     "Will Sewell <me@willsewell.com> @willsewell":
-        []
-        # - benchpress # GHC 8.2.1
+        - benchpress
         # - pusher-http-haskell # GHC 8.2.1
 
     "Yorick Laupa yo.eight@gmail.com @YoEight":
@@ -2445,7 +2449,7 @@ packages:
 
     "Mihaly Barasz klao@nilcons.com @klao":
         - lens-datetime
-        # - tz # GHC 8.2.1 via timezone-series
+        - tz
         - tzdata
 
     "Timothy Klim <stackage@timothyklim.com> @TimothyKlim":
@@ -2454,16 +2458,15 @@ packages:
     "David Luposchainsky <dluposchainsky (λ) googles email service> @quchen":
         # - binary-typed # https://github.com/quchen/binary-typed/issues/42
         - pgp-wordlist
-        # - show-prettyprint # https://github.com/fpco/stackage/issues/2554 # GHC 8.2.1
-
-        # - prettyprinter # GHC 8.2.1
-        # - prettyprinter-ansi-terminal # GHC 8.2.1
-        # - prettyprinter-compat-wl-pprint # GHC 8.2.1
-        # - prettyprinter-compat-ansi-wl-pprint # GHC 8.2.1
-        # - prettyprinter-compat-annotated-wl-pprint # GHC 8.2.1
+        - show-prettyprint
+        - prettyprinter
+        - prettyprinter-ansi-terminal
+        - prettyprinter-compat-wl-pprint
+        - prettyprinter-compat-ansi-wl-pprint
+        - prettyprinter-compat-annotated-wl-pprint
 
     "Jeremy Shaw <jeremy@n-heptane.com> @stepcut":
-        # - boomerang # GHC 8.2.1
+        - boomerang
         # - clckwrks # via acid-state: via safecopy: bounds: vector
         # - clckwrks-cli # via acid-state: via safecopy: bounds: vector
         # - clckwrks-plugin-page # via acid-state: via safecopy: bounds: vector
@@ -2473,25 +2476,25 @@ packages:
         # - happstack-authenticate # via acid-state: via safecopy: bounds: vector
         # - happstack-clientsession # via safecopy: bounds: vector
         # - happstack-hsp # GHC 8.2.1 via hsx2hs
-        # - happstack-jmacro # GHC 8.2.1 via happstack-server
-        # - happstack-server # GHC 8.2.1
-        # - happstack-server-tls # GHC 8.2.1
+        - happstack-jmacro
+        - happstack-server
+        - happstack-server-tls
         - hsx-jmacro
-        # - ixset # via safecopy: bounds: vector
+        # - ixset # via: syb-with-class, safecopy
         - reform
         - reform-blaze
         - reform-hamlet
-        # - reform-happstack # GHC 8.2.1 via happstack-server
-        # - reform-hsp # GHC 8.2.1 via hsx2hs
+        - reform-happstack
+        - reform-hsp
         # - userid # via safecopy: bounds: vector
         - web-plugins
-        # - web-routes # GHC 8.2.1
-        # - web-routes-boomerang # GHC 8.2.1 via bomoerang
-        # - web-routes-happstack # GHC 8.2.1 via happstack-server
+        - web-routes
+        - web-routes-boomerang
+        - web-routes-happstack
         - web-routes-hsp
-        # - web-routes-th # GHC 8.2.1
+        - web-routes-th
         - web-routes-wai
-        # - hsx2hs # GHC 8.2.1
+        - hsx2hs
 
     "Pedro Tacla Yamada <tacla.yamada@gmail.com> @yamadapc":
         - ascii-progress
@@ -2508,11 +2511,11 @@ packages:
         - projectroot
         - questioner
         # - stack-run-auto # GHC 8.2.1 via extract-dependencies
-        # - hpack-convert # bounds: aeson 1.0
+        - hpack-convert < 0
         - language-dockerfile
 
     "Pascal Hartig <phartig@rdrei.net> @passy":
-        # - giphy-api # GHC 8.2.1
+        - giphy-api
         - optparse-text
 
     "rightfold <rightfold@gmail.com> @rightfold":
@@ -2531,8 +2534,7 @@ packages:
         # - wai-session-postgresql # GHC-8.2.1
 
     "Haisheng Wu <freizl@gmail.com> @freizl":
-        []
-        # - hoauth2 # GHC 8.2.1 via uri-bytestring
+        - hoauth2
 
     "Falko Peters <falko.peters@gmail.com> @informatikr":
         - scrypt
@@ -2541,11 +2543,11 @@ packages:
         - dawg-ord
 
     "Amit Levy <amit@amitlevy.com> @alevy":
-        # - postgresql-orm # 0.4.1 compilation failure
+        - postgresql-orm < 0 # 0.5.0 compilation failure
         - simple
         - simple-templates
         - simple-session
-        # - simple-postgresql-orm # via: postgresql-orm
+        # - simple-postgresql-orm # compilation failure via: postgresql-orm
 
     "Sergey Astanin <s.astanin@gmail.com> @astanin":
         # Stackage server uses Ubuntu 16.04 which ships libzip-1.0.1.
@@ -2554,9 +2556,8 @@ packages:
         - LibZip >= 1.0
 
     "Anthony Cowley <acowley@gmail.com> @acowley":
-        []
-        # - Frames # GHC 8.2.1
-        # - hpp # GHC 8.2.1
+        - Frames < 0 # test compilation failure
+        - hpp
 
     "Takayuki Muranushi <muranushi@gmail.com> @nushio3":
         - binary-search
@@ -2565,13 +2566,13 @@ packages:
     "Jason Shipman <jasonpshipman@gmail.com> @jship":
         # on behalf of Boris Sukholitko @bosu
         []
-        # - pure-cdb # https://github.com/bosu/pure-cdb/issues/5
+        # - pure-cdb # https://github.com/bosu/pure-cdb/issues/5 & via testing-feat
 
     "Suhail Shergill <suhailshergill@gmail.com> @suhailshergill":
         - extensible-effects
 
     "Justus Adam <dev@justus.science> @JustusAdam":
-        # - marvin >= 0.1.4 # GHC 8.2.1 via tls via irc-conduit
+        - marvin
         - marvin-interpolate >= 1.1
         - mustache
 
@@ -2600,10 +2601,11 @@ packages:
 
     "Elie Genard <elaye.github.io@gmail.com> @eliegenard":
         - turtle-options
-        # - mushu # GHC 8.2.1 via libmpd
+        - mushu < 0 # compilation failure
         # - hakyll-favicon # bounds: skylighting
 
-    # "Ruey-Lin Hsu <petercommand@gmail.com> @petercommand":
+    "Ruey-Lin Hsu <petercommand@gmail.com> @petercommand":
+        []
         # - MASMGen # bounds: ghc, base
 
     "Ozgun Ataman ozgun.ataman@soostone.com @ozataman":
@@ -2622,7 +2624,8 @@ packages:
         # - SVGFonts # GHC 8.2.1 via diagrams-core
         # - Chart-diagrams # bounds optparse-applicative
 
-    # "Aaron Levin <aaron.levin@soundcloud.com> @aaronmblevin":
+    "Aaron Levin <aaron.levin@soundcloud.com> @aaronmblevin":
+        []
         # - haskell-kubernetes # bounds: QuickCheck, aeson, http-api-data, lens, servant, servant-client
 
     "Aaron Levin <vilevin@gmail.com> @aaronmblevin":
@@ -2644,9 +2647,8 @@ packages:
         # - reedsolomon # bounds: vector
 
     "Alp Mestanogullari <alpmestan@gmail.com> @alpmestan":
-        []
-        # - taggy # build failure https://github.com/alpmestan/taggy/issues/19
-        # - taggy-lens # via taggy: build failure https://github.com/alpmestan/taggy/issues/19
+        - taggy < 0 # compilation failure https://github.com/alpmestan/taggy/issues/19
+        # - taggy-lens # via taggy: compilation failure https://github.com/alpmestan/taggy/issues/19
 
     "Alex McLean <lxyxpx@gmail.com> @yaxu":
         - tidal
@@ -2655,9 +2657,9 @@ packages:
         - th-data-compat
         - th-reify-compat
         - relational-query
-        # - relational-query-HDBC # GHC 8.2.1
-        # - persistable-types-HDBC-pg # GHC 8.2.1
-        # - relational-record # GHC 8.2.1
+        - relational-query-HDBC
+        - persistable-types-HDBC-pg
+        - relational-record
         - text-ldap
         - debian-build
         - aeson-generic-compat
@@ -2675,15 +2677,16 @@ packages:
         - unification-fd
         - unix-bytestring
 
-    # "Carlo Hamalainen <carlo@carlo-hamalainen.net> @carlohamalainen":
+    "Carlo Hamalainen <carlo@carlo-hamalainen.net> @carlohamalainen":
+        []
         # - ghc-imported-from # bounds: process-streaming # via: ghc-mod
 
     "Fraser Tweedale <frase@frase.id.au> @frasertweedale":
         - concise
         - jose
 
-    # "Yutaka Nishimura <ytk.nishimura@gmail.com> @ynishi":
-        # - atndapi # compilation failure https://github.com/ynishi/atndapi/issues/1
+    "Yutaka Nishimura <ytk.nishimura@gmail.com> @ynishi":
+        - atndapi < 0 # compilation failure https://github.com/ynishi/atndapi/issues/1
 
     "Yoshikuni Jujo <PAF01143@nifty.ne.jp> @YoshikuniJujo":
         - zot
@@ -2697,22 +2700,28 @@ packages:
         - papillon
 
     "Jan Gerlinger <git@jangerlinger.de> @JanGe":
-        []
-        # - irc-dcc # bounds: path
+        - irc-dcc
         # - xdcc # bounds: path
 
     "John Ky newhoggy@gmail.com @newhoggy":
+        - hw-balancedparens
         - hw-bits
-        # - hw-conduit # via criterion: via cassava: bounds: vector
+        - hw-conduit
         - hw-diagnostics
-        # - hw-json # via criterion: via cassava: bounds: vector
+        - hw-excess
+        - hw-hedgehog
+        - hw-hspec-hedgehog
+        - hw-int
+        - hw-json
         - hw-parser
         - hw-prim
         - hw-rankselect
+        - hw-rankselect-base
         - hw-succinct
+        - hw-xml
 
-    # "Ismail Mustafa <ismailmustafa@rocketmail.com> @ismailmustafa":
-        # - handwriting # GHC 8.2.1
+    "Ismail Mustafa <ismailmustafa@rocketmail.com> @ismailmustafa":
+        - handwriting
 
     "Stephen Diehl <stephen.m.diehl@gamil.com> @sdiehl":
         - protolude
@@ -2723,8 +2732,8 @@ packages:
         - api-field-json-th
         # - yesod-job-queue # bounds cron
 
-    # "Braden Walters <vc@braden-walters.info> @meoblast001":
-        # - hakyll-sass # compilation failure
+    "Braden Walters <vc@braden-walters.info> @meoblast001":
+        - hakyll-sass < 0 # compilation failure
 
     "Patrick Thomson <patrick@helium.com> @helium":
         - postgresql-transactional
@@ -2758,7 +2767,7 @@ packages:
         - eventful-sql-common
         - eventful-sqlite
         - eventful-test-helpers
-        # - oanda-rest-api # GHC 8.2.1 via MemoTrie
+        - oanda-rest-api < 0 # test compilation failure
         - stratosphere
         - sum-type-boilerplate
 
@@ -2769,16 +2778,17 @@ packages:
     "Iñaki García Etxebarria <garetxe@gmail.com> @garetxe":
         - gi-atk
         - gi-cairo
-        # - gi-gdk # https://github.com/haskell-gi/haskell-gi/issues/113
-        # - gi-gdkpixbuf # https://github.com/haskell-gi/haskell-gi/issues/113
-        # - gi-gio # https://github.com/haskell-gi/haskell-gi/issues/113
+        - gi-gdk < 0 # compilation failure via gi-pango https://github.com/haskell-gi/haskell-gi/issues/113
+        # - gi-gdkpixbuf # via gi-gio compilation failure https://github.com/haskell-gi/haskell-gi/issues/113
+        - gi-gio < 0 # compilation failure https://github.com/haskell-gi/haskell-gi/issues/113
         - gi-glib
         - gi-gobject
-        # - gi-gtk # https://github.com/haskell-gi/haskell-gi/issues/113
-        # - gi-pango # https://github.com/haskell-gi/haskell-gi/issues/113
-        # - gi-soup # https://github.com/haskell-gi/haskell-gi/issues/113
+        # - gi-gtk # compilation failure via gi-pango https://github.com/haskell-gi/haskell-gi/issues/113
+        - gi-pango < 0 # compilation failure https://github.com/haskell-gi/haskell-gi/issues/113
+        # - gi-soup # via gi-gio compilation failure https://github.com/haskell-gi/haskell-gi/issues/113
         - gi-javascriptcore == 3.0.*
-        # - gi-webkit # https://github.com/haskell-gi/haskell-gi/issues/113
+        # - gi-webkit # compilation failure via gi-pango https://github.com/haskell-gi/haskell-gi/issues/113
+        - gi-ostree < 0 # dependent on gi-gio
         - haskell-gi
         - haskell-gi-base
 
@@ -2796,8 +2806,8 @@ packages:
     "Richard Eisenberg <eir@cis.upenn.edu> @goldfirere":
         - th-desugar
         - singletons
-        # - units # GHC 8.2.1 via MemoTrie
-        # - units-defs # GHC 8.2.1 via MemoTrie
+        - units < 0 # compilation failure
+        # - units-defs # via units compilation failure
         - HUnit-approx
         - units-parser
 
@@ -2816,6 +2826,7 @@ packages:
 
     "Henri Verroken <henriverroken@gmail.com> @hverr":
         - cache
+        - xxhash-ffi
 
     "Cliff Harvey <cs.hbar+hs@gmail.com> @BlackBrane":
         - ansigraph
@@ -2829,8 +2840,8 @@ packages:
         - fast-digits
         - bit-stream
 
-    # "Greg Hurrell <greg@hurrell.net> @wincent":
-        # - docvim # compilation failure: https://github.com/wincent/docvim/issues/30
+    "Greg Hurrell <greg@hurrell.net> @wincent":
+        - docvim < 0 # compilation failure: https://github.com/wincent/docvim/issues/30
 
     "Ashley Yakeley <ashley@semantic.org> @AshleyYakeley":
         - countable
@@ -2855,7 +2866,7 @@ packages:
 
     "Michal Konecny <mikkonecny@gmail.com> @michalkonecny":
         - hmpfr
-        # - mixed-types-num # GHC 8.2.1
+        - mixed-types-num
 
     "Bartosz Nitka <niteria@gmail.com> @niteria":
         - oeis
@@ -2870,8 +2881,8 @@ packages:
         - array-memoize
         # - camfort # https://github.com/camfort/camfort/issues/102
         - codo-notation
-        # - fortran-src # OOM https://github.com/fpco/stackage/issues/2232
-        # - ixmonad # 0.57 Compilation failure https://github.com/fpco/stackage/pull/1710#issuecomment-235067168
+        - fortran-src < 0 # OOM https://github.com/fpco/stackage/issues/2232
+        - ixmonad < 0 # 0.57 Compilation failure https://github.com/fpco/stackage/pull/1710#issuecomment-235067168
         - language-fortran
 
     "Philipp Schuster <phischu3000@gmail.com> @phischu":
@@ -2887,13 +2898,13 @@ packages:
         []
         # - aeson-injector # GHC 8.2.1
 
-    # "Rune K. Svendsen <runesvend@gmail.com> @runeks":
+    "Rune K. Svendsen <runesvend@gmail.com> @runeks":
+        []
         # - bitcoin-payment-channel # bounds: QuickCheck, aeson 1.0 # via: haskoin-core
 
     "Al Zohali <zohl@fmap.me> @zohl":
-        []
-        # - servant-auth-cookie # GHC 8.2.1
-        # - dictionaries # GHC 8.2.1
+        - servant-auth-cookie
+        - dictionaries
 
     "Joachim Fasting <joachifm@fastmail.fm> @joachifm":
         - libmpd
@@ -2904,13 +2915,12 @@ packages:
         - llvm-hs-pure
 
     "Thierry Bourrillon <thierry.bourrillon@fpinsight.com> @tbourrillon":
-        []
-        # - heatshrink # GHC 8.2.1 via c2hs
-        # - hocilib # GHC 8.2.1 via c2hs
+        - heatshrink
+        - hocilib
 
     "Matthias Herrmann <matthias.mh.herrmann@gmail.com> @2chilled":
         []
-        # scrape-changes # cannot build because validation fails https://github.com/NICTA/validation/issues/9
+        # - scrape-changes # cannot build because validation fails https://github.com/NICTA/validation/issues/9
 
     "Daniel Mendler <mail@daniel-mendler.de> @minad":
         - quickcheck-special
@@ -2925,9 +2935,9 @@ packages:
         - unlit
         - intro
         - tasty-auto
-        # - tasty-stats # GHC 8.2.1
+        - tasty-stats
         - colorful-monoids
-        # - ihs # GHC 8.2.1
+        - ihs
 
     "Taras Serduke <taras.serduke@gmail.com> @tserduke":
         - do-list
@@ -2948,8 +2958,8 @@ packages:
         - vector-mmap
 
     "Alex Mason <alex.mason@data61.csiro.au> @Axman6":
-      # - foldl-statistics # bounds: foldl
-      - amazonka-s3-streaming
+        # - foldl-statistics # bounds: foldl
+        - amazonka-s3-streaming
 
     "Ondrej Palkovsky <palkovsky.ondrej@gmail.com> @ondrap":
         []
@@ -2967,12 +2977,11 @@ packages:
         # - HDBC-mysql # GHC 8.2.1
 
     "Tony Day <tonyday567@gmail.com> @tonyday567":
-        []
-        # - numhask # GHC 8.2.1 via protolude
-        # - numhask-range # GHC 8.2.1 via protolude
+        - numhask
+        - numhask-range
         # - chart-unit # bounds optparse-applicative
         # - perf # bounds optparse-applicative
-        # - online # GHC 8.2.1 via protolude
+        - online
 
     "Iphigenia Df <iphydf@gmail.com> @iphydf":
         - data-msgpack
@@ -2994,8 +3003,7 @@ packages:
         - postgresql-simple-queue
 
     "Bernie Pope <bjpope@unimelb.edu.au> @bjpop":
-        []
-        # - language-python # https://github.com/bjpop/language-python/issues/35
+        - language-python < 0 # compilation failure https://github.com/bjpop/language-python/issues/35
 
     "Mahdi Dibaiee <mdibaiee@aol.com>":
         - picedit
@@ -3023,14 +3031,13 @@ packages:
     "Kadzuya Okamoto <arow.okamoto@gmail.com> @arowM":
         - type-level-kv-list
         - heterocephalus
-        # - bookkeeping # GHC 8.2.1
+        - bookkeeping
 
     "Marcin Tolysz <tolysz@gmail.com> @tolysz":
         - rawstring-qm
 
     "Tom Nielsen <tanielsen@gmail.com> @glutamate":
-        []
-        # - datasets # via cassava: bounds: vector
+        - datasets
 
     "Hyunje Jun <me@noraesae.net> @noraesae":
         - line
@@ -3043,16 +3050,15 @@ packages:
         - printcess
 
     "Alexey Kuleshevich <lehins@yandex.ru> @lehins":
-        []
-        # - wai-middleware-auth # GHC 8.2.1 via uri-bytestring
-        # - hip # via repa: bounds: vector
+        - wai-middleware-auth
+        # - hip # via repa-algorithms
 
     "Hans-Peter Deifel <hpd@hpdeifel.de> @hpdeifel":
-        - hledger-iadd
+        []
+        # - hledger-iadd  # megaparsec bounds: https://github.com/fpco/stackage/issues/2666
 
     "Roy Levien <royl@aldaron.com> @orome":
-        []
-        # - crypto-enigma # GHC 8.2.1
+        - crypto-enigma
 
     "Boldizsár Németh <nboldi@elte.hu> @nboldi":
         - instance-control
@@ -3115,8 +3121,8 @@ packages:
     "ncaq <ncaq@ncaq.net> @ncaq":
         - haskell-import-graph
         - uniq-deep
-        # - yesod-form-bootstrap4 # GHC 8.2.1 via yesod-form
-        # - yesod-recaptcha2 # GHC 8.2.1 via yesod-auth
+        - yesod-form-bootstrap4
+        - yesod-recaptcha2
 
     "Andrei Barbu <andrei@0xab.com> @abarbu":
         - nondeterminism
@@ -3127,7 +3133,7 @@ packages:
         - tsv2csv
 
     "Thomas Sutton <me@thomas-sutton.id.au> @thsutton":
-        # - aeson-diff # GHC 8.2.1
+        - aeson-diff
         - edit-distance-vector
 
     "Kyle Van Berendonck <kvanberendonck@gmail.com> @kvanberendonck":
@@ -3138,7 +3144,8 @@ packages:
         - hasbolt
 
     "Michael Thomas <Michaelt293@gmail.com> @Michaelt293":
-        - isotope
+        []
+        # - isotope # megaparsec bounds: https://github.com/fpco/stackage/issues/2666
 
     "Christopher A. Gorski <cgorski@cgorski.org> @cgorski":
         - general-games
@@ -3163,9 +3170,8 @@ packages:
         - regex-pcre-text
 
     "Elliot Cameron <eacameron@gmail.com> @3noch":
-        []
-        # - ziptastic-client # GHC 8.2.1 via tz
-        # - ziptastic-core # GHC 8.2.1 via tz
+        - ziptastic-client
+        - ziptastic-core
 
     "Hardy Jones <jones3.hardy@gmail.com> @joneshf":
         []
@@ -3177,7 +3183,7 @@ packages:
 
     "Albert Krewinkel <albert+stackage@zeitkraut.de> @tarleb":
         - hslua
-        # - hslua-aeson # BOUNDS hslua 0.6
+        - hslua-aeson
 
     "Judah Jacobson <judah.jacobson@gmail.com> @judah":
         - lens-labels
@@ -3188,19 +3194,19 @@ packages:
         - proto-lens-arbitrary
         - proto-lens-optparse
         - proto-lens-protobuf-types
-        # - tensorflow # GHC 8.2.1
-        # - tensorflow-core-ops # bounds: tensorflow
-        # - tensorflow-opgen # bounds: tensorflow
-        # - tensorflow-ops # bounds: tensorflow
-        # - tensorflow-proto # bounds: proto-lens-protoc
-        # - tensorflow-test # bounds: tensorflow
+        # - tensorflow # via: tensorflow-proto
+        # - tensorflow-core-ops # via: tensorflow-proto
+        # - tensorflow-opgen # via: tensorflow-proto
+        # - tensorflow-ops # bounds: tensorflow-proto
+        # - tensorflow-proto # compilation failure
+        - tensorflow-test
 
     "Christof Schramm <christof.schramm@campus.lmu.de>":
         - mnist-idx
 
     "Naushadh <naushadh@protonmail.com> @naushadh":
         []
-        # - persistent-mysql-haskell # bounds: tcp-streams
+        # - persistent-mysql-haskell # bounds: tcp-streams (see mysql-haskell)
 
     "Moritz Schulte <mtesseract@silverratio.net> @mtesseract":
         - async-refresh
@@ -3210,8 +3216,7 @@ packages:
         - async-timer
 
     "Simon Hafner <hafnersimon@gmail.com> @reactormonk":
-        []
-        # - uri-bytestring-aeson # GHC 8.2.1
+        - uri-bytestring-aeson
 
     "Sebastian Witte <woozletoff@gmail.com> @saep":
         - nvim-hs
@@ -3239,8 +3244,7 @@ packages:
         # - haddock # cabal-version >= 2
 
     "Mark Hopkins <markjohnhopkins@gmail.com> @mjhopkins":
-        []
-        # - alerta # GHC 8.2.1
+        - alerta
 
     "Steven Vandevelde <icid.asset@gmail.com> @icidasset":
         - shikensu
@@ -3257,7 +3261,7 @@ packages:
         - bno055-haskell
 
     "Lars Brünjes <brunjlar@gmail.com> @brunjlar":
-        # neural # https://github.com/fpco/stackage/issues/2735
+        # - neural # https://github.com/fpco/stackage/issues/2735
         - pell
 
     "Matt Noonan <matt.noonan@gmail.com> @matt-noonan":
@@ -3275,6 +3279,14 @@ packages:
     "Lorenz Moesenlechner <moesenle@gmail.com> @moesenle":
         - servant-websockets
 
+    "Daniel Campoverde <alx@sillybytes.net> @alx741":
+        - currencies
+
+    "José Lorenzo Rodríguez <jose.zap@gmail.com> @lorenzo":
+        - wrecker
+        - docker-build-cacher
+        # - mysql-haskell-nem : blocked on mysql-haskell
+
     # If you stop maintaining a package you can move it here.
     # It will then be disabled if it starts causing problems.
     # See https://github.com/fpco/stackage/issues/1056
@@ -3307,13 +3319,6 @@ packages:
         # https://github.com/fpco/stackage/issues/2663
         - doctest < 0.12
 
-        # https://github.com/fpco/stackage/issues/2666
-        - megaparsec < 6
-        - hspec-megaparsec < 1
-        - dotenv < 0.4
-        - inflections < 0.4
-        # Unblock cue-sheet above when removing this bound
-
         # https://github.com/fpco/stackage/issues/2714
         - brick < 0.21
         - word-wrap < 0.2
@@ -3333,6 +3338,9 @@ packages:
         # https://github.com/fpco/stackage/issues/2779
         - xml-conduit < 1.6.0
 
+        # https://github.com/fpco/stackage/issues/2797
+        # - inflections < 0.4.0.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of
@@ -3601,6 +3609,7 @@ expected-test-failures:
     - distributed-process
     - distributed-process-execution # https://github.com/haskell-distributed/distributed-process-execution/issues/2
     - distributed-process-task
+    - dotenv # https://github.com/stackbuilders/dotenv-hs/issues/58
     - foldl-statistics # https://github.com/data61/foldl-statistics/issues/2
     - fsnotify # Often runs out of inotify handles
     - hastache
@@ -3692,6 +3701,7 @@ expected-test-failures:
     - serversession-backend-redis # redis
     - shake # Needs ghc on $PATH with some installed haskell packages
     - singletons # Needs ghc on $PATH with som installed haskell packages
+    - users-persistent # sqlite
     - users-postgresql-simple # PostgreSQL
     - wai-cors # PhantomJS
     - wai-session-postgresql # PostgreSQL
@@ -3715,7 +3725,6 @@ expected-test-failures:
     - ghc-syb-utils # https://github.com/nominolo/ghc-syb/issues/18
     - graylog # 0.1.0.1 https://github.com/fpco/stackage/pull/1254
     - haskell-names # 0.7.0 https://github.com/haskell-suite/haskell-names/issues/78
-    - hw-rankselect # https://github.com/haskell-works/hw-rankselect/issues/12
     - matplotlib # https://github.com/fpco/stackage/issues/2365
     - rematch # No issue tracker, sent e-mail to maintainer https://github.com/fpco/stackage/issues/376
     - xlsior # https://github.com/rcallahan/xlsior/issues/1
@@ -3743,7 +3752,6 @@ expected-test-failures:
     - commutative # https://github.com/athanclark/commutative/issues/4
     - dbus # 0.10.12 No issue tracker, e-mail sent to maintainer
     - flat # https://github.com/Quid2/flat/issues/1
-    - foundation # https://github.com/haskell-foundation/foundation/issues/381
     - haddock
     - heap # https://github.com/pruvisto/heap/issues/4
     - hledger-iadd # https://github.com/hpdeifel/hledger-iadd/issues/26
@@ -3899,6 +3907,9 @@ skipped-benchmarks:
     # Cyclic dependencies
     - cassava
 
+    # Timeouts
+    - gogol-youtube
+
     # Maintainers who don't want to update benchmarks
     # Only re-enable if requested.
     ## @hvr https://github.com/fpco/stackage/issues/2538#issuecomment-304458844
diff --git a/debian-bootstrap.sh b/debian-bootstrap.sh
index a6edb296..9c592e4f 100755
--- a/debian-bootstrap.sh
+++ b/debian-bootstrap.sh
@@ -207,6 +207,24 @@ curl https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-l
     && rm libtensorflow.tar.gz \
     && ldconfig
 
+# Install CUDA toolkit
+# The current version can be found at: https://developer.nvidia.com/cuda-downloads
+CUDA_PKG=8.0.61-1         # update this on new version
+CUDA_VER=${CUDA_PKG:0:3}
+CUDA_APT=${CUDA_VER/./-}
+
+pushd /tmp \
+    && wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/cuda-repo-ubuntu1604_${CUDA_PKG}_amd64.deb \
+    && dpkg -i cuda-repo-ubuntu1604_${CUDA_PKG}_amd64.deb \
+    && apt-get update -qq \
+    && apt-get install -y cuda-drivers cuda-core-${CUDA_APT} cuda-cudart-dev-${CUDA_APT} cuda-cufft-dev-${CUDA_APT} cuda-cublas-dev-${CUDA_APT} cuda-cusparse-dev-${CUDA_APT} cuda-cusolver-dev-${CUDA_APT} \
+    && rm cuda-repo-ubuntu1604_${CUDA_PKG}_amd64.deb \
+    && export CUDA_PATH=/usr/local/cuda-${CUDA_VER} \
+    && export LD_LIBRARY_PATH=${CUDA_PATH}/nvvm/lib64:${LD_LIBRARY_PATH} \
+    && export LD_LIBRARY_PATH=${CUDA_PATH}/lib64:${LD_LIBRARY_PATH} \
+    && export PATH=${CUDA_PATH}/bin:${PATH} \
+    && popd
+
 ## non-free repo for mediabus-fdk-aac
 #apt-add-repository multiverse \
 #    && apt-get update \