Update main.yml

.github/workflows/main.yml

@@ -25,18 +25,11 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       - uses: actions/checkout@v2
-      - uses: cachix/install-nix-action@v13
+      - name: Checkout submodules
+        run: git submodule update --init --recursive
+      - name: Install Nix
+        uses: cachix/install-nix-action@v13
         with:
-          nix_path: nixpkgs=channel:nixos-unstable
-      - run: "nix-shell --run 'nanoc --env=prod'"
-      - uses: actions/checkout@v2
-
-      # Runs a single command using the runners shell
-      - name: Run a one-line script
-        run: echo Hello, world!
-
-      # Runs a set of commands using the runners shell
-      - name: Run a multi-line script
-        run: |
-          echo Add other actions to build,
-          echo test, and deploy your project.
+          nix_path: nixpkgs=channel:nixos-20.09
+      - name: Build site 
+        run: "nix-shell --run 'nanoc --env=prod'"

.travis.yml

@@ -1,28 +1,13 @@
-language: ruby
-bundler_args: --without development,nanoc
+language: nix
 
 # Travis' own submodule update is broken somehow
 git:
   submodules: false
 
+# Cache the nix store (See https://nixos.wiki/wiki/Nix_on_Travis)
 cache:
-  apt: true
-  bundler: true
-
-  # Cache nanoc directories
-  # NEVER MIND LOL
-  # directories:
-  #   - output
-  #   - tmp
-
-addons:
-  apt:
-    packages:
-      - texlive-generic-recommended
-      - texlive-latex-base
-      - texlive-math-extra
-      - texlive-xetex
-      - lmodern
+  directories:
+    - $HOME/nix.store
 
 branches:
   only:
@@ -32,25 +17,22 @@ notifications:
   slack:
     secure: 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
 before_install:
-- wget https://github.com/jgm/pandoc/releases/download/2.10.1/pandoc-2.10.1-1-amd64.deb
-- sudo dpkg -i pandoc-2.10.1-1-amd64.deb
+- sudo mkdir -p /etc/nix
+- echo "substituters = https://cache.nixos.org/ file://$HOME/nix.store" | sudo tee -a /etc/nix/nix.conf > /dev/null
+- echo 'require-sigs = false' | sudo tee -a /etc/nix/nix.conf > /dev/null
 - openssl aes-256-cbc -K $encrypted_6059a4f451fd_key -iv $encrypted_6059a4f451fd_iv
   -in id_rsa.enc -out deploy_key -d
 - mv deploy_key ~/.ssh/id_rsa
 - chmod 600 ~/.ssh/id_rsa
 - echo -e "[zeus.ugent.be]:2222 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBC87/Q3H8f7ghmA+iCtKGaNyk0fx3Z36Xrn+eGv8a4pD7MXeu6Uwr0aN5HnkcbRWXFtMwnAU3ptoP90vH7qu99w=\n[herbert.ugent.be]:2222 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBGLnJMh2DgqpVnHxOmeV6KffvzZGEVfniq0NFHRGZoL4f7Uc8xeG9gn3cc7lCL02F9LwWZNwR4gSqhGt/RK2S54=\n[git.zeus.gent]:2222 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBGLnJMh2DgqpVnHxOmeV6KffvzZGEVfniq0NFHRGZoL4f7Uc8xeG9gn3cc7lCL02F9LwWZNwR4gSqhGt/RK2S54=\n" >> ~/.ssh/known_hosts
 - git submodule update --init --recursive --remote
-# Repo for newer Node.js versions
-# - curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
-# Repo for Yarn
-# - sudo apt-key adv --keyserver pgp.mit.edu --recv D101F7899D41F3C3
-# - echo "deb http://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
-# - sudo apt-get update -qq
-# - sudo apt-get install -y -qq yarn
-- yarn
 script:
-- bundle exec nanoc --env=prod
-- bundle exec nanoc --env=prod check --deploy
+- nix-shell --run 'nanoc --env=prod'
+- nix-shell --run 'nanoc --env=prod check --deploy'
 after_success:
 - chmod +x ./deploy.sh
-- ./deploy.sh
+- nix-shell --run './deploy.sh'
+before_cache:
+- mkdir -p $HOME/nix.store
+- nix copy --to file://$HOME/nix.store -f default.nix buildInputs
+

Gemfile

@@ -8,8 +8,6 @@ gem 'kramdown'
 
 # Kramdown math mode gems
 gem 'kramdown-math-katex'
-# Also needed for autoprefixing
-gem 'mini_racer'
 
 gem 'sassc'
 gem 'typogruby'

Gemfile.lock

@@ -35,7 +35,7 @@ GEM
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
-    ffi (1.14.2)
+    ffi (1.15.0)
     formatador (0.2.5)
     guard (2.16.2)
       formatador (>= 0.2.4)
@@ -57,27 +57,24 @@ GEM
     highline (2.0.3)
     htmlcompressor (0.4.0)
     http_parser.rb (0.6.0)
-    icalendar (2.7.0)
+    icalendar (2.7.1)
       ice_cube (~> 0.16)
     ice_cube (0.16.3)
     json (2.5.1)
-    json_schema (0.20.9)
+    json_schema (0.21.0)
     katex (0.6.1)
       execjs (~> 2.7)
-    kramdown (2.3.0)
+    kramdown (2.3.1)
       rexml
     kramdown-math-katex (1.0.1)
       katex (~> 0.4)
       kramdown (~> 2.0)
-    libv8 (8.4.255.0)
-    listen (3.4.1)
+    listen (3.5.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     lumberjack (1.2.8)
     method_source (1.0.0)
     mini_portile2 (2.5.0)
-    mini_racer (0.3.1)
-      libv8 (~> 8.4.255)
     nanoc (4.12.0)
       addressable (~> 2.5)
       colored (~> 1.2)
@@ -117,8 +114,8 @@ GEM
       nanoc-cli (~> 4.11, >= 4.11.14)
       nanoc-core (~> 4.11, >= 4.11.14)
     nenv (0.3.0)
-    nio4r (2.5.5)
-    nokogiri (1.11.1)
+    nio4r (2.5.7)
+    nokogiri (1.11.2)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
     notiffany (0.1.3)
@@ -132,7 +129,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.6)
-    puma (5.2.1)
+    puma (5.2.2)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -182,7 +179,6 @@ DEPENDENCIES
   icalendar
   kramdown
   kramdown-math-katex
-  mini_racer
   nanoc
   nanoc-live
   pandoc-ruby

gemset.nix

@@ -0,0 +1,816 @@
+{
+  addressable = {
+    dependencies = ["public_suffix"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1fvchp2rhp2rmigx7qglf69xvjqvzq7x0g49naliw29r2bz656sy";
+      type = "gem";
+    };
+    version = "2.7.0";
+  };
+  adsf = {
+    dependencies = ["rack"];
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1w56jzrx2z1dd74qj3x641b3ar6i4c170xqfq51gja3fq35flkas";
+      type = "gem";
+    };
+    version = "1.4.5";
+  };
+  adsf-live = {
+    dependencies = ["adsf" "em-websocket" "eventmachine" "listen" "rack-livereload"];
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0dvbdy113xlcnafjzhgjiqmssycfmlnlawr31m66kyfvlgx952g9";
+      type = "gem";
+    };
+    version = "1.4.5";
+  };
+  autoprefixer-rails = {
+    dependencies = ["execjs"];
+    groups = ["production"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "05z02ylv8rbcc3k6zlngizixc9csy779cqmlaa8hn7kylxizk3gy";
+      type = "gem";
+    };
+    version = "10.2.4.0";
+  };
+  builder = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "045wzckxpwcqzrjr353cxnyaxgf0qg22jh00dcx7z38cys5g1jlr";
+      type = "gem";
+    };
+    version = "3.2.4";
+  };
+  coderay = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0jvxqxzply1lwp7ysn94zjhh57vc14mcshw1ygw14ib8lhc00lyw";
+      type = "gem";
+    };
+    version = "1.1.3";
+  };
+  colored = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0b0x5jmsyi0z69bm6sij1k89z7h0laag3cb4mdn7zkl9qmxb90lx";
+      type = "gem";
+    };
+    version = "1.2";
+  };
+  concurrent-ruby = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0mr23wq0szj52xnj0zcn1k0c7j4v79wlwbijkpfcscqww3l6jlg3";
+      type = "gem";
+    };
+    version = "1.1.8";
+  };
+  cri = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1bhsgnjav94mz5vf3305gxz1g34gm9kxvnrn1dkz530r8bpj0hr5";
+      type = "gem";
+    };
+    version = "2.15.11";
+  };
+  ddmemoize = {
+    dependencies = ["ddmetrics" "ref"];
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "15ylhhfhd35zlr0wzcc069h0sishrfn27m0q54lf7ih092mccb6l";
+      type = "gem";
+    };
+    version = "1.0.0";
+  };
+  ddmetrics = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0in0hk546q3js6qghbifjqvab6clyx5fjrwd3lcb0mk1ihmadyn2";
+      type = "gem";
+    };
+    version = "1.0.1";
+  };
+  ddplugin = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "14hbvr6qjcn1i6pin8rq9kr02f98imskhrl8k53117mlfxxhl9sv";
+      type = "gem";
+    };
+    version = "1.0.3";
+  };
+  diff-lcs = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0m925b8xc6kbpnif9dldna24q1szg4mk0fvszrki837pfn46afmz";
+      type = "gem";
+    };
+    version = "1.4.4";
+  };
+  em-websocket = {
+    dependencies = ["eventmachine" "http_parser.rb"];
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1mg1mx735a0k1l8y14ps2mxdwhi5r01ikydf34b0sp60v66nvbkb";
+      type = "gem";
+    };
+    version = "0.5.2";
+  };
+  eventmachine = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0wh9aqb0skz80fhfn66lbpr4f86ya2z5rx6gm5xlfhd05bj1ch4r";
+      type = "gem";
+    };
+    version = "1.2.7";
+  };
+  execjs = {
+    groups = ["default" "production"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1yz55sf2nd3l666ms6xr18sm2aggcvmb8qr3v53lr4rir32y1yp1";
+      type = "gem";
+    };
+    version = "2.7.0";
+  };
+  ffi = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0nq1fb3vbfylccwba64zblxy96qznxbys5900wd7gm9bpplmf432";
+      type = "gem";
+    };
+    version = "1.15.0";
+  };
+  formatador = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1gc26phrwlmlqrmz4bagq1wd5b7g64avpx0ghxr9xdxcvmlii0l0";
+      type = "gem";
+    };
+    version = "0.2.5";
+  };
+  guard = {
+    dependencies = ["formatador" "listen" "lumberjack" "nenv" "notiffany" "pry" "shellany" "thor"];
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1fwgvkmrg97xfswwgfrfcl1nc937yxwazfvpmf8vxj7cvnx7mfki";
+      type = "gem";
+    };
+    version = "2.16.2";
+  };
+  guard-compat = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1zj6sr1k8w59mmi27rsii0v8xyy2rnsi09nqvwpgj1q10yq1mlis";
+      type = "gem";
+    };
+    version = "1.2.1";
+  };
+  guard-nanoc = {
+    dependencies = ["guard" "guard-compat" "nanoc-cli" "nanoc-core"];
+    groups = ["nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1whi9i9b4ffqs7awsjjrlpaq2gi5846yks1fy6s30pg50chn73ah";
+      type = "gem";
+    };
+    version = "2.1.9";
+  };
+  hamster = {
+    dependencies = ["concurrent-ruby"];
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1n1lsh96vnyc1pnzyd30f9prcsclmvmkdb3nm5aahnyizyiy6lar";
+      type = "gem";
+    };
+    version = "3.0.0";
+  };
+  highline = {
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0yclf57n2j3cw8144ania99h1zinf8q3f5zrhqa754j6gl95rp9d";
+      type = "gem";
+    };
+    version = "2.0.3";
+  };
+  htmlcompressor = {
+    groups = ["production"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "17hzzg7alnmalb1xgv1bgw3aj5wczsijhq6c945kymkbsj7cyc26";
+      type = "gem";
+    };
+    version = "0.4.0";
+  };
+  "http_parser.rb" = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "15nidriy0v5yqfjsgsra51wmknxci2n2grliz78sf9pga3n0l7gi";
+      type = "gem";
+    };
+    version = "0.6.0";
+  };
+  icalendar = {
+    dependencies = ["ice_cube"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1wv5wq6pzq6434bnxfanvijswj2rnfvjmgisj1qg399mc42g46ls";
+      type = "gem";
+    };
+    version = "2.7.1";
+  };
+  ice_cube = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1rzfydzgy6jppqvzzr76skfk07nmlszpcjzzn4wlzpsgmagmf0wq";
+      type = "gem";
+    };
+    version = "0.16.3";
+  };
+  json = {
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0lrirj0gw420kw71bjjlqkqhqbrplla61gbv1jzgsz6bv90qr3ci";
+      type = "gem";
+    };
+    version = "2.5.1";
+  };
+  json_schema = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0nzcnb9j7bbj3nc6izwlsxky8j4xly345qzfg5v5n6550kqfmqfn";
+      type = "gem";
+    };
+    version = "0.21.0";
+  };
+  katex = {
+    dependencies = ["execjs"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1815kc0hicy1am2plyim06zqb5dwj5hy8hgfdd05z3lnvv1l5ckj";
+      type = "gem";
+    };
+    version = "0.6.1";
+  };
+  kramdown = {
+    dependencies = ["rexml"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0jdbcjv4v7sj888bv3vc6d1dg4ackkh7ywlmn9ln2g9alk7kisar";
+      type = "gem";
+    };
+    version = "2.3.1";
+  };
+  kramdown-math-katex = {
+    dependencies = ["katex" "kramdown"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1p2cn05pk26lixbag0hvvyxz9b4hizl1hz8hwawlkv6mzscv46bi";
+      type = "gem";
+    };
+    version = "1.0.1";
+  };
+  listen = {
+    dependencies = ["rb-fsevent" "rb-inotify"];
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0h2v34xhi30w0d9gfzds2w6v89grq2gkpgvmdj9m8x1ld1845xnj";
+      type = "gem";
+    };
+    version = "3.5.1";
+  };
+  lumberjack = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "06pybb23hypc9gvs2p839ildhn26q68drb6431ng3s39i3fkkba8";
+      type = "gem";
+    };
+    version = "1.2.8";
+  };
+  method_source = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1pnyh44qycnf9mzi1j6fywd5fkskv3x7nmsqrrws0rjn5dd4ayfp";
+      type = "gem";
+    };
+    version = "1.0.0";
+  };
+  mini_portile2 = {
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1hdbpmamx8js53yk3h8cqy12kgv6ca06k0c9n3pxh6b6cjfs19x7";
+      type = "gem";
+    };
+    version = "2.5.0";
+  };
+  nanoc = {
+    dependencies = ["addressable" "colored" "nanoc-checking" "nanoc-cli" "nanoc-core" "nanoc-deploying" "parallel" "tty-command" "tty-which"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0dylmcbblxj0sbwjiym961amxvj0r8yks47kdw9ssfbx9wg73chw";
+      type = "gem";
+    };
+    version = "4.12.0";
+  };
+  nanoc-checking = {
+    dependencies = ["nanoc-cli" "nanoc-core"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "09bdmvq90s2pbxlala8ami6w2zb1zlqjhm69wn7wwxzh3kp2r9js";
+      type = "gem";
+    };
+    version = "1.0.1";
+  };
+  nanoc-cli = {
+    dependencies = ["cri" "diff-lcs" "nanoc-core" "zeitwerk"];
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0mz93msccaa4g5dkjab5j77g7b353zavxia7wvrwmgccznmli9p1";
+      type = "gem";
+    };
+    version = "4.12.0";
+  };
+  nanoc-core = {
+    dependencies = ["concurrent-ruby" "ddmemoize" "ddmetrics" "ddplugin" "hamster" "json_schema" "slow_enumerator_tools" "tomlrb" "tty-platform" "zeitwerk"];
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1yibscgw82dafqp4giprmvbqz3zadka8ywvgpd6lgm1kf4c3j1qm";
+      type = "gem";
+    };
+    version = "4.12.0";
+  };
+  nanoc-deploying = {
+    dependencies = ["nanoc-checking" "nanoc-cli" "nanoc-core"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "02l19qjsaj9rn1iw8fkpc1dmccgniggd4r7xvpsvvdl4nlrl56sq";
+      type = "gem";
+    };
+    version = "1.0.1";
+  };
+  nanoc-live = {
+    dependencies = ["adsf-live" "listen" "nanoc-cli" "nanoc-core"];
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0mnyibl977narr9k6n9wz3cpry03vkc5bwffnxbv34qfp873dqx7";
+      type = "gem";
+    };
+    version = "1.0.0";
+  };
+  nenv = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0r97jzknll9bhd8yyg2bngnnkj8rjhal667n7d32h8h7ny7nvpnr";
+      type = "gem";
+    };
+    version = "0.3.0";
+  };
+  nio4r = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "00fwz0qq7agd2xkdz02i8li236qvwhma3p0jdn5bdvc21b7ydzd5";
+      type = "gem";
+    };
+    version = "2.5.7";
+  };
+  nokogiri = {
+    dependencies = ["mini_portile2" "racc"];
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0b51df8fwadak075cvi17w0nch6qz1r66564qp29qwfj67j9qp0p";
+      type = "gem";
+    };
+    version = "1.11.2";
+  };
+  notiffany = {
+    dependencies = ["nenv" "shellany"];
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0f47h3bmg1apr4x51szqfv3rh2vq58z3grh4w02cp3bzbdh6jxnk";
+      type = "gem";
+    };
+    version = "0.1.3";
+  };
+  pandoc-ruby = {
+    groups = ["production"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1y7i5f2i67n1j91vnc2gwscjc1z7k1axfl2hbsk4y30y2k1qam94";
+      type = "gem";
+    };
+    version = "2.1.4";
+  };
+  parallel = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0055br0mibnqz0j8wvy20zry548dhkakws681bhj3ycb972awkzd";
+      type = "gem";
+    };
+    version = "1.20.1";
+  };
+  pastel = {
+    dependencies = ["tty-color"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0xash2gj08dfjvq4hy6l1z22s5v30fhizwgs10d6nviggpxsj7a8";
+      type = "gem";
+    };
+    version = "0.8.0";
+  };
+  pry = {
+    dependencies = ["coderay" "method_source"];
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1shq3vfdg7c9l1wppl8slridl95wmwvnngqhga6j2571nnv50piv";
+      type = "gem";
+    };
+    version = "0.14.0";
+  };
+  public_suffix = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1xqcgkl7bwws1qrlnmxgh8g4g9m10vg60bhlw40fplninb3ng6d9";
+      type = "gem";
+    };
+    version = "4.0.6";
+  };
+  puma = {
+    dependencies = ["nio4r"];
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0wiprd0v4mjqv5p1vqaidr9ci2xm08lcxdz1k50mb1b6nrw6r74k";
+      type = "gem";
+    };
+    version = "5.2.2";
+  };
+  racc = {
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "178k7r0xn689spviqzhvazzvxfq6fyjldxb3ywjbgipbfi4s8j1g";
+      type = "gem";
+    };
+    version = "1.5.2";
+  };
+  rack = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0i5vs0dph9i5jn8dfc6aqd6njcafmb20rwqngrf759c9cvmyff16";
+      type = "gem";
+    };
+    version = "2.2.3";
+  };
+  rack-livereload = {
+    dependencies = ["rack"];
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1slzlmvlapgp2pc7389i0zndq3nka0s6sh445vf21cxpz7vz3p5i";
+      type = "gem";
+    };
+    version = "0.3.17";
+  };
+  rainpress = {
+    groups = ["production"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1yhd2l9963k0fv9q5rck2zbp3c1q8c0xpw8nvgjizq3wgmy282q4";
+      type = "gem";
+    };
+    version = "1.0.1";
+  };
+  rb-fsevent = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1k9bsj7ni0g2fd7scyyy1sk9dy2pg9akniahab0iznvjmhn54h87";
+      type = "gem";
+    };
+    version = "0.10.4";
+  };
+  rb-inotify = {
+    dependencies = ["ffi"];
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1jm76h8f8hji38z3ggf4bzi8vps6p7sagxn3ab57qc0xyga64005";
+      type = "gem";
+    };
+    version = "0.10.1";
+  };
+  ref = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "04p4pq4sikly7pvn30dc7v5x2m7fqbfwijci4z1y6a1ilwxzrjii";
+      type = "gem";
+    };
+    version = "2.0.0";
+  };
+  rexml = {
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1mkvkcw9fhpaizrhca0pdgjcrbns48rlz4g6lavl5gjjq3rk2sq3";
+      type = "gem";
+    };
+    version = "3.2.4";
+  };
+  rubypants = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0kv2way45d2dz3h5b7wxyw36clvlwrz7ydf6699d0za5vm56gsrh";
+      type = "gem";
+    };
+    version = "0.7.1";
+  };
+  sassc = {
+    dependencies = ["ffi"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0gpqv48xhl8mb8qqhcifcp0pixn206a7imc07g48armklfqa4q2c";
+      type = "gem";
+    };
+    version = "2.4.0";
+  };
+  shellany = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1ryyzrj1kxmnpdzhlv4ys3dnl2r5r3d2rs2jwzbnd1v96a8pl4hf";
+      type = "gem";
+    };
+    version = "0.0.1";
+  };
+  slow_enumerator_tools = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0phfj4jxymxf344cgksqahsgy83wfrwrlr913mrsq2c33j7mj6p6";
+      type = "gem";
+    };
+    version = "1.1.0";
+  };
+  terminal-notifier = {
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1slc0y8pjpw30hy21v8ypafi8r7z9jlj4bjbgz03b65b28i2n3bs";
+      type = "gem";
+    };
+    version = "2.0.0";
+  };
+  terminal-notifier-guard = {
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0hcpqljmlgs4z54n48dwks8h49q4h7k4jvcf8ah1p4zrbsqirck6";
+      type = "gem";
+    };
+    version = "1.7.0";
+  };
+  thor = {
+    groups = ["default" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "18yhlvmfya23cs3pvhr1qy38y41b6mhr5q9vwv5lrgk16wmf3jna";
+      type = "gem";
+    };
+    version = "1.1.0";
+  };
+  tomlrb = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "00x5y9h4fbvrv4xrjk4cqlkm4vq8gv73ax4alj3ac2x77zsnnrk8";
+      type = "gem";
+    };
+    version = "1.3.0";
+  };
+  tty-color = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0aik4kmhwwrmkysha7qibi2nyzb4c8kp42bd5vxnf8sf7b53g73g";
+      type = "gem";
+    };
+    version = "0.6.0";
+  };
+  tty-command = {
+    dependencies = ["pastel"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "14hi8xiahfrrnydw6g3i30lxvvz90wp4xsrlhx8mabckrcglfv0c";
+      type = "gem";
+    };
+    version = "0.10.1";
+  };
+  tty-platform = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "02h58a8yg2kzybhqqrhh4lfdl9nm0i62nd9jrvwinjp802qkffg2";
+      type = "gem";
+    };
+    version = "0.3.0";
+  };
+  tty-which = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1ki331s870p7j8yi58q8ig0gwy9kfgmjlq1jqs11h12mcm0mzi0a";
+      type = "gem";
+    };
+    version = "0.4.2";
+  };
+  typogruby = {
+    dependencies = ["rubypants"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0j7kd1jlpa2n2xk5cm63yzj1fbvhralw6ca3zm1br5pn2r3pd82h";
+      type = "gem";
+    };
+    version = "1.0.18";
+  };
+  uglifier = {
+    dependencies = ["execjs"];
+    groups = ["production"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0wgh7bzy68vhv9v68061519dd8samcy8sazzz0w3k8kqpy3g4s5f";
+      type = "gem";
+    };
+    version = "4.2.0";
+  };
+  w3c_validators = {
+    dependencies = ["json" "nokogiri" "rexml"];
+    groups = ["test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0j98x7byq6zzc5w00xqlwhbccv8s0x156s5f0fnfb4x6k0aq376i";
+      type = "gem";
+    };
+    version = "1.3.6";
+  };
+  words_counted = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      fetchSubmodules = false;
+      rev = "735357e4d530c99d5c4c366d0c246ebffffd80de";
+      sha256 = "0gdcdr1r22wssy6ryvmc1l2lyxn97z6qb1715maidq7yhllmr261";
+      type = "git";
+      url = "https://github.com/werthen/words_counted";
+    };
+    version = "1.0.2";
+  };
+  yui-compressor = {
+    groups = ["production"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "06x5r189vvy24yn41ndf94m0kgl8zcwxkr77bw7d2jz00wy46957";
+      type = "gem";
+    };
+    version = "0.12.0";
+  };
+  zeitwerk = {
+    groups = ["default" "development" "nanoc"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1746czsjarixq0x05f7p3hpzi38ldg6wxnxxw74kbjzh1sdjgmpl";
+      type = "gem";
+    };
+    version = "2.4.2";
+  };
+}

shell.nix

@@ -1,10 +1,15 @@
+with (import <nixpkgs> {});
 let
-  pkgs = import <nixpkgs> {};
-in with pkgs; mkShell {
+  gems = pkgs.bundlerEnv {
+    name = "zeus.ugent.be";
+    inherit ruby;
+    gemdir = ./.;
+  };
+in mkShell {
   nativeBuildInputs = [
-    ruby bundler libxml2 nodejs yarn cacert git glibcLocales
-    pandoc (texlive.combine { inherit (texlive) scheme-basic xetex unicode-math enumitem booktabs; })
-  ];
+    ruby gems bundler libxml2 nodejs yarn cacert git glibcLocales
+    pandoc (texlive.combine { inherit (texlive) scheme-basic xetex unicode-math enumitem booktabs ulem; })
+  ] ++ (if stdenv.isDarwin then [terminal-notifier] else []);
   shellHook = ''
     export LANG=en_US.UTF-8
   '';