diff --git a/Makefile b/Makefile
index fc52df4..6c3bea2 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ ifeq ($(I),composite)
 else ifneq (,$(filter $(I),admin ci))
 	docker build . -f docker/$(I)/Dockerfile -t riju:$(I)
 else
-	docker build . -f docker/$(I)/Dockerfile -t riju:$(I) --label riju.image-hash=$(shell node tools/hash-dockerfile.js $(I))
+	hash="$$(node tools/hash-dockerfile.js $(I) | grep .)"; docker build . -f docker/$(I)/Dockerfile -t riju:$(I) --label riju.image-hash="$${hash}"
 endif
 
 .PHONY: script
@@ -43,6 +43,10 @@ script:
 
 .PHONY: scripts
 scripts:
+	@: $${L}
+	node tools/make-foreach.js --types script L=$(L)
+
+.PHONY: all-scripts
 	node tools/make-foreach.js --pkgs script
 
 .PHONY: pkg
@@ -53,12 +57,23 @@ pkg:
 	cd $(BUILD)/src && pkg="$(PWD)/$(BUILD)/pkg" ../build.bash
 	fakeroot dpkg-deb --build $(BUILD)/pkg $(BUILD)/$(DEB)
 
+.PHONY: pkgs
+pkgs:
+	@: $${L}
+	node tools/make-foreach.js --types pkg L=$(L)
+
 .PHONY: repkg
 repkg:
 	@: $${L} $${T}
+	make script L=$(L) T=$(T)
 	make shell I=packaging CMD="make pkg L=$(L) T=$(T)"
 	ctr="$$(docker container ls -f label="riju-install-target=yes" -l -q)"; test "$${ctr}" || (echo "no valid container is live"; exit 1); docker exec "$${ctr}" make install L=$(L) T=$(T)
 
+.PHONY: repkgs
+repkgs:
+	@: $${L}
+	node tools/make-foreach.js --types repkg L=$(L)
+
 ### Manipulate artifacts inside Docker
 
 VOLUME_MOUNT ?= $(PWD)
@@ -172,7 +187,7 @@ upload:
 	@: $${L} $${T} $${S3_BUCKET}
 	aws s3 rm --recursive $(S3_HASH)
 	aws s3 cp $(BUILD)/$(DEB) $(S3_DEB)
-	aws s3 cp - $(S3_HASH)/$(shell dpkg-deb -f $(BUILD)/$(DEB) Riju-Script-Hash) < /dev/null
+	hash="$$(dpkg-deb -f $(BUILD)/$(DEB) Riju-Script-Hash | grep .)"; aws s3 cp - "$(S3_HASH)/$${hash}" < /dev/null
 
 .PHONY: publish
 publish:
diff --git a/deps/prettier.yaml b/deps/prettier.yaml
new file mode 100644
index 0000000..6f11af6
--- /dev/null
+++ b/deps/prettier.yaml
@@ -0,0 +1,5 @@
+id: "prettier"
+
+install:
+  npm:
+    - prettier
diff --git a/deps/sass.yaml b/deps/sass.yaml
new file mode 100644
index 0000000..60892df
--- /dev/null
+++ b/deps/sass.yaml
@@ -0,0 +1,5 @@
+id: "sass"
+
+install:
+  npm:
+    - sass
diff --git a/docker/runtime/install.bash b/docker/runtime/install.bash
index 382ffb5..c2aed00 100755
--- a/docker/runtime/install.bash
+++ b/docker/runtime/install.bash
@@ -10,22 +10,61 @@ pushd /tmp
 
 export DEBIAN_FRONTEND=noninteractive
 
+dpkg --add-architecture i386
+
 apt-get update
 (yes || true) | unminimize
 
 apt-get install -y curl gnupg lsb-release
 
-curl -sSL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -
-curl -sSL https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
+# Ceylon
+curl -fsSL https://downloads.ceylon-lang.org/apt/ceylon-debian-repo.gpg.key | apt-key add -
+
+# Crystal
+curl -fsSL https://keybase.io/crystal/pgp_keys.asc | apt-key add -
+
+# Dart
+curl -fsSL https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
+
+# Hack
+apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B4112585D386EB94
+
+# Node.js
+curl -fsSL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -
+
+# R
+apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
+
+# Yarn
+curl -fsSL https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
 
 ubuntu_ver="$(lsb_release -rs)"
 ubuntu_name="$(lsb_release -cs)"
 
-node_repo="$(curl -sS https://deb.nodesource.com/setup_current.x | grep NODEREPO= | grep -Eo 'node_[0-9]+\.x' | head -n1)"
+cran_repo="$(curl -fsSL https://cran.r-project.org/bin/linux/ubuntu/ | grep '<tr>' | grep "${ubuntu_name}" | grep -Eo 'cran[0-9]+' | head -n1)"
+node_repo="$(curl -fsSL https://deb.nodesource.com/setup_current.x | grep NODEREPO= | grep -Eo 'node_[0-9]+\.x' | head -n1)"
 
 tee -a /etc/apt/sources.list.d/custom.list >/dev/null <<EOF
-deb https://deb.nodesource.com/${node_repo} ${ubuntu_name} main
-deb https://dl.yarnpkg.com/debian/ stable main
+# Ceylon
+deb [arch=amd64] https://downloads.ceylon-lang.org/apt/ unstable main
+
+# Crystal
+deb [arch=amd64] https://dist.crystal-lang.org/apt crystal main
+
+# Dart
+deb [arch=amd64] https://storage.googleapis.com/download.dartlang.org/linux/debian stable main
+
+# Hack
+deb [arch=amd64] https://dl.hhvm.com/ubuntu ${ubuntu_name} main
+
+# Node.js
+deb [arch=amd64] https://deb.nodesource.com/${node_repo} ${ubuntu_name} main
+
+# R
+deb [arch=amd64] https://cloud.r-project.org/bin/linux/ubuntu ${ubuntu_name}-${cran_repo} main
+
+# Yarn
+deb [arch=amd64] https://dl.yarnpkg.com/debian/ stable main
 EOF
 
 apt-get update
diff --git a/langs/asciidoc.yaml b/langs/asciidoc.yaml
index e9f86bc..d2f5d40 100644
--- a/langs/asciidoc.yaml
+++ b/langs/asciidoc.yaml
@@ -23,6 +23,8 @@ info:
 install:
   apt:
     - asciidoc
+  riju:
+    - prettier
 
 main: "main.adoc"
 template: |
diff --git a/langs/bash.yaml b/langs/bash.yaml
index 47e7f10..bdcc3fd 100644
--- a/langs/bash.yaml
+++ b/langs/bash.yaml
@@ -27,6 +27,8 @@ info:
 install:
   apt:
     - bash
+  npm:
+    - bash-language-server
 
 repl: |
   bash --rcfile /dev/null
diff --git a/langs/befunge.yaml b/langs/befunge.yaml
index 318528e..df840f1 100644
--- a/langs/befunge.yaml
+++ b/langs/befunge.yaml
@@ -3,6 +3,11 @@ aliases:
   - "be"
 name: "Befunge"
 
+install:
+  npm:
+    - befunge93
+    - prompt-sync
+
 info:
   impl: "amicloud Befunge-93"
   version: "Befunge-93"
diff --git a/langs/bython.yaml b/langs/bython.yaml
index 7c91c12..53fa2fe 100644
--- a/langs/bython.yaml
+++ b/langs/bython.yaml
@@ -3,6 +3,10 @@ aliases:
   - "by"
 name: "Bython"
 
+install:
+  pip:
+    - bython
+
 main: "main.by"
 template: |
   print("Hello, world!")
diff --git a/langs/chef.yaml b/langs/chef.yaml
index 8ff6c85..4d0acdc 100644
--- a/langs/chef.yaml
+++ b/langs/chef.yaml
@@ -20,6 +20,9 @@ info:
   paradigm: imperative
   usage: []
 
+install:
+  cpan: Acme::Chef
+
 main: "main.chef"
 template: |
   Hello World Cake with Chocolate Sauce.
diff --git a/langs/clojurescript.yaml b/langs/clojurescript.yaml
index b3db5d4..e5c70a4 100644
--- a/langs/clojurescript.yaml
+++ b/langs/clojurescript.yaml
@@ -31,6 +31,10 @@ info:
     - oo
   usage: []
 
+install:
+  npm:
+    - lumo-cljs
+
 repl: |
   lumo -r
 input: |
diff --git a/langs/coffeescript.yaml b/langs/coffeescript.yaml
index a982219..2092bfc 100644
--- a/langs/coffeescript.yaml
+++ b/langs/coffeescript.yaml
@@ -30,6 +30,10 @@ info:
     - imperative
   usage: []
 
+install:
+  npm:
+    - coffeescript
+
 repl: |
   coffee
 
diff --git a/langs/confluence.yaml b/langs/confluence.yaml
index f5b4d69..44c9662 100644
--- a/langs/confluence.yaml
+++ b/langs/confluence.yaml
@@ -22,6 +22,12 @@ info:
   paradigm: []
   usage: []
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.txt"
 template: |
   Hello, world!
diff --git a/langs/dogescript.yaml b/langs/dogescript.yaml
index 83c653d..c698736 100644
--- a/langs/dogescript.yaml
+++ b/langs/dogescript.yaml
@@ -5,6 +5,10 @@ aliases:
   - "wow"
 name: "Dogescript"
 
+install:
+  npm:
+    - dogescript
+
 repl: |
   dogescript
 
diff --git a/langs/dokuwiki.yaml b/langs/dokuwiki.yaml
index a7068df..f8d4937 100644
--- a/langs/dokuwiki.yaml
+++ b/langs/dokuwiki.yaml
@@ -3,6 +3,12 @@ aliases:
   - "doku"
 name: "DokuWiki"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.txt"
 template: |
   Hello, world!
diff --git a/langs/elm.yaml b/langs/elm.yaml
index ad16734..82ce638 100644
--- a/langs/elm.yaml
+++ b/langs/elm.yaml
@@ -1,6 +1,11 @@
 id: "elm"
 name: "Elm"
 
+install:
+  npm:
+    - "@kachkaev/run-elm"
+    - "@elm-tooling/elm-language-server"
+
 repl: |
   elm repl
 
diff --git a/langs/fortran.yaml b/langs/fortran.yaml
index 9e22fc8..d8355eb 100644
--- a/langs/fortran.yaml
+++ b/langs/fortran.yaml
@@ -12,6 +12,8 @@ name: "FORTRAN"
 install:
   apt:
     - flang
+  pip:
+    - fortran-language-server
 
 main: "main.f"
 template: |2
diff --git a/langs/hy.yaml b/langs/hy.yaml
index 061f003..51b0bb8 100644
--- a/langs/hy.yaml
+++ b/langs/hy.yaml
@@ -1,6 +1,10 @@
 id: "hy"
 name: "Hy"
 
+install:
+  pip:
+    - hy
+
 repl: |
   hy
 input: |
diff --git a/langs/javascript.yaml b/langs/javascript.yaml
index c988b5e..f1e4623 100644
--- a/langs/javascript.yaml
+++ b/langs/javascript.yaml
@@ -14,6 +14,8 @@ install:
   apt:
     - nodejs
     - yarn
+  riju:
+    - prettier
 
 repl: |
   node
diff --git a/langs/less.yaml b/langs/less.yaml
index adb8fde..be199d5 100644
--- a/langs/less.yaml
+++ b/langs/less.yaml
@@ -4,6 +4,12 @@ aliases:
 name: "Less"
 monacoLang: less
 
+install:
+  riju:
+    - prettier
+  npm:
+    - less
+
 main: "main.less"
 template: |
   body:before {
diff --git a/langs/livescript.yaml b/langs/livescript.yaml
index 5bc58f3..3bb83fc 100644
--- a/langs/livescript.yaml
+++ b/langs/livescript.yaml
@@ -4,6 +4,10 @@ aliases:
   - "ls"
 name: "LiveScript"
 
+install:
+  npm:
+    - livescript
+
 repl: |
   lsc
 input: |
diff --git a/langs/markdown.yaml b/langs/markdown.yaml
index 6295b4d..6c36b8e 100644
--- a/langs/markdown.yaml
+++ b/langs/markdown.yaml
@@ -12,6 +12,12 @@ aliases:
 name: "Markdown"
 monacoLang: markdown
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.md"
 template: |
   Hello, world!
diff --git a/langs/mediawiki.yaml b/langs/mediawiki.yaml
index 8771ddc..db7a053 100644
--- a/langs/mediawiki.yaml
+++ b/langs/mediawiki.yaml
@@ -3,6 +3,12 @@ aliases:
   - "media"
 name: "MediaWiki"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.txt"
 template: |
   Hello, world!
diff --git a/langs/ocaml.yaml b/langs/ocaml.yaml
index 7049bfc..0dd6ac5 100644
--- a/langs/ocaml.yaml
+++ b/langs/ocaml.yaml
@@ -2,11 +2,11 @@ id: "ocaml"
 name: "OCaml"
 
 install:
-  build:
-    apt:
-      - opam
   apt:
     - ocaml
+  opam:
+    - ocamlformat
+    - ocaml-lsp-server: "https://github.com/ocaml/ocaml-lsp.git"
 
 repl: |
   ocaml
diff --git a/langs/org.yaml b/langs/org.yaml
index 2a71c62..276de61 100644
--- a/langs/org.yaml
+++ b/langs/org.yaml
@@ -3,6 +3,12 @@ aliases:
   - "orgmode"
 name: "Org"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.org"
 template: |
   Hello, world!
diff --git a/langs/perl.yaml b/langs/perl.yaml
index 2615faf..52399d9 100644
--- a/langs/perl.yaml
+++ b/langs/perl.yaml
@@ -8,6 +8,9 @@ monacoLang: perl
 install:
   apt:
     - perl
+  cpan:
+    - Devel::REPL
+    - Perl::Tidy
 
 repl: |
   re.pl
diff --git a/langs/php.yaml b/langs/php.yaml
index bbcf115..0f490d4 100644
--- a/langs/php.yaml
+++ b/langs/php.yaml
@@ -7,6 +7,8 @@ monacoLang: php
 install:
   apt:
     - php
+  npm:
+    - intelephense
 
 repl: |
   php -a
diff --git a/langs/pikachu.yaml b/langs/pikachu.yaml
index 3156d6c..61348a2 100644
--- a/langs/pikachu.yaml
+++ b/langs/pikachu.yaml
@@ -12,6 +12,10 @@ aliases:
   - "pokeball"
 name: "Pikachu"
 
+install:
+  pip:
+    - pikalang
+
 main: "main.pokeball"
 template: |
   pi pi pi pi pi pi pi pi pi pi pika pipi pi pi pi pi pi pi pi pipi pi pi
diff --git a/langs/pug.yaml b/langs/pug.yaml
index 43eb07e..71298c5 100644
--- a/langs/pug.yaml
+++ b/langs/pug.yaml
@@ -2,6 +2,12 @@ id: "pug"
 name: "Pug"
 monacoLang: pug
 
+install:
+  riju:
+    - prettier
+  npm:
+    - pug-cli
+
 main: "main.pug"
 template: |
   html
diff --git a/langs/purescript.yaml b/langs/purescript.yaml
index 06e5f24..7962b3f 100644
--- a/langs/purescript.yaml
+++ b/langs/purescript.yaml
@@ -7,6 +7,9 @@ name: "PureScript"
 install:
   apt:
     - libtinfo5
+  npm:
+    - purescript
+    - spago
 
 setup: |
   shopt -s dotglob; cp -R /opt/purescript/project-template/* "$PWD/"
diff --git a/langs/reasonml.yaml b/langs/reasonml.yaml
index 145f67b..fd4fff7 100644
--- a/langs/reasonml.yaml
+++ b/langs/reasonml.yaml
@@ -7,6 +7,12 @@ aliases:
   - "bucklescript"
 name: "ReasonML"
 
+install:
+  npm:
+    - bs-platform
+  opam:
+    - reason
+
 main: "main.re"
 template: |
   print_string("Hello, world!\n");
diff --git a/langs/restructuredtext.yaml b/langs/restructuredtext.yaml
index dcec5e7..bd0d329 100644
--- a/langs/restructuredtext.yaml
+++ b/langs/restructuredtext.yaml
@@ -4,6 +4,12 @@ aliases:
 name: "reStructuredText"
 monacoLang: restructuredtext
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.rst"
 template: |
   Hello, world!
diff --git a/langs/roff.yaml b/langs/roff.yaml
index 3fc6a09..c1115cb 100644
--- a/langs/roff.yaml
+++ b/langs/roff.yaml
@@ -16,6 +16,12 @@ aliases:
   - "manual"
 name: "roff"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.roff"
 template: |
   .PP
diff --git a/langs/ruby.yaml b/langs/ruby.yaml
index ec5daa2..1a61b1a 100644
--- a/langs/ruby.yaml
+++ b/langs/ruby.yaml
@@ -8,6 +8,9 @@ monacoLang: ruby
 install:
   apt:
     - ruby
+  gem:
+    - rufo
+    - solargraph
 
 repl: |
   irb
@@ -16,14 +19,12 @@ main: "main.rb"
 template: |
   puts "Hello, world!"
 suffix: |
-
   require 'irb'
   IRB.setup(ARGV[0], argv: [])
   workspace = IRB::WorkSpace.new(binding)
   binding_irb = IRB::Irb.new(workspace)
   binding_irb.run(IRB.conf)
 
-
 run: |
   ruby main.rb
 
diff --git a/langs/sass.yaml b/langs/sass.yaml
index a726978..cb22fce 100644
--- a/langs/sass.yaml
+++ b/langs/sass.yaml
@@ -1,6 +1,10 @@
 id: "sass"
 name: "Sass"
 
+install:
+  riju:
+    - sass
+
 main: "main.sass"
 template: |
   body:before
diff --git a/langs/scss.yaml b/langs/scss.yaml
index fe1c944..9e38b7f 100644
--- a/langs/scss.yaml
+++ b/langs/scss.yaml
@@ -2,6 +2,11 @@ id: "scss"
 name: "SCSS"
 monacoLang: scss
 
+install:
+  riju:
+    - sass
+    - prettier
+
 main: "main.scss"
 template: |
   body:before {
diff --git a/langs/shakespeare.yaml b/langs/shakespeare.yaml
index 44f4591..9523ba4 100644
--- a/langs/shakespeare.yaml
+++ b/langs/shakespeare.yaml
@@ -3,6 +3,10 @@ aliases:
   - "spl"
 name: "Shakespeare"
 
+install:
+  pip:
+    - shakespearelang
+
 repl: |
   shakespeare console
 input: |
@@ -104,7 +108,6 @@ template: |
 
   [Exeunt]
 suffix: |
-
   [A pause]
 
 run: |
diff --git a/langs/slick.yaml b/langs/slick.yaml
index 9e8ea24..c54d7f5 100644
--- a/langs/slick.yaml
+++ b/langs/slick.yaml
@@ -1,6 +1,10 @@
 id: "slick"
 name: "Slick"
 
+install:
+  opam:
+    - dune
+
 repl: |
   slick
 input: |
diff --git a/langs/textile.yaml b/langs/textile.yaml
index 52546bc..63fd5ce 100644
--- a/langs/textile.yaml
+++ b/langs/textile.yaml
@@ -1,6 +1,12 @@
 id: "textile"
 name: "Textile"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.textile"
 template: |
   Hello, world!
diff --git a/langs/tikiwiki.yaml b/langs/tikiwiki.yaml
index 92114df..3a15bfa 100644
--- a/langs/tikiwiki.yaml
+++ b/langs/tikiwiki.yaml
@@ -3,6 +3,12 @@ aliases:
   - "tiki"
 name: "Tiki Wiki"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.txt"
 template: |
   Hello, world!
diff --git a/langs/twiki.yaml b/langs/twiki.yaml
index 2bc50a5..191aa35 100644
--- a/langs/twiki.yaml
+++ b/langs/twiki.yaml
@@ -1,6 +1,12 @@
 id: "twiki"
 name: "TWiki"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.txt"
 template: |
   Hello, world!
diff --git a/langs/typescript.yaml b/langs/typescript.yaml
index e146a43..8eecf37 100644
--- a/langs/typescript.yaml
+++ b/langs/typescript.yaml
@@ -6,6 +6,13 @@ aliases:
 name: "TypeScript"
 monacoLang: typescript
 
+install:
+  riju:
+    - prettier
+  npm:
+    - typescript
+    - ts-node
+
 repl: |
   ts-node
 
diff --git a/langs/vim.yaml b/langs/vim.yaml
index d3e492f..4030fb2 100644
--- a/langs/vim.yaml
+++ b/langs/vim.yaml
@@ -7,6 +7,8 @@ name: "Vimscript"
 install:
   apt:
     - vim
+  npm:
+    - vim-language-server
 
 repl: |
   vim
diff --git a/langs/vimwiki.yaml b/langs/vimwiki.yaml
index 4a9b8bd..038643a 100644
--- a/langs/vimwiki.yaml
+++ b/langs/vimwiki.yaml
@@ -1,6 +1,12 @@
 id: "vimwiki"
 name: "Vimwiki"
 
+install:
+  apt:
+    - pandoc
+  riju:
+    - prettier
+
 main: "main.txt"
 template: |
   Hello, world!
diff --git a/langs/whitespace.yaml b/langs/whitespace.yaml
index 9cbc480..0cd42d9 100644
--- a/langs/whitespace.yaml
+++ b/langs/whitespace.yaml
@@ -3,6 +3,10 @@ aliases:
   - "ws"
 name: "Whitespace"
 
+install:
+  pip:
+    - whitespace
+
 main: "main.ws"
 template: "Hello, world  \t  \t   \n\t\n     \t\t  \t \t\n\t\n     \t\t \t\t  \n\t\n     \t\t \t\t  \n\t\n     \t\t \t\t\t\t\n\t\n     \t \t\t  \n\t\n     \t     \n\t\n     \t\t\t \t\t\t\n\t\n     \t\t \t\t\t\t\n\t\n     \t\t\t  \t \n\t\n     \t\t \t\t  \n\t\n     \t\t  \t  \n\t\n  \n\n\n"
 
diff --git a/langs/wolframlanguage.yaml b/langs/wolframlanguage.yaml
index c4f953c..9c7de96 100644
--- a/langs/wolframlanguage.yaml
+++ b/langs/wolframlanguage.yaml
@@ -10,10 +10,8 @@ aliases:
 name: "Wolfram Language"
 
 install:
-  build:
-    apt:
-      - python3
-      - python3-dev
+  pip:
+    - Mathics3
 
 repl: |
   mathics
diff --git a/langs/yaml.yaml b/langs/yaml.yaml
index 1048284..dc983cd 100644
--- a/langs/yaml.yaml
+++ b/langs/yaml.yaml
@@ -7,6 +7,8 @@ monacoLang: yaml
 install:
   apt:
     - jq
+  riju:
+    - prettier
 
 main: "main.yaml"
 template: |