diff --git a/.github/actions/setup-javascript/action.yml b/.github/actions/setup-javascript/action.yml
new file mode 100644
index 0000000000..c0f2957fb1
--- /dev/null
+++ b/.github/actions/setup-javascript/action.yml
@@ -0,0 +1,19 @@
+name: 'Setup Javascript'
+description: 'Setup a Javascript environment ready to run the Mastodon code'
+inputs:
+  onlyProduction:
+    description: Only install production dependencies
+    default: 'false'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Set up Node.js
+      uses: actions/setup-node@v3
+      with:
+        cache: yarn
+        node-version-file: '.nvmrc'
+
+    - name: Install all yarn packages
+      shell: bash
+      run: yarn --frozen-lockfile ${{ inputs.onlyProduction != 'false' && '--production' || '' }}
diff --git a/.github/actions/setup-ruby/action.yml b/.github/actions/setup-ruby/action.yml
new file mode 100644
index 0000000000..3a6fba9402
--- /dev/null
+++ b/.github/actions/setup-ruby/action.yml
@@ -0,0 +1,23 @@
+name: 'Setup RUby'
+description: 'Setup a Ruby environment ready to run the Mastodon code'
+inputs:
+  ruby-version:
+    description: The Ruby version to install
+    default: '.ruby-version'
+  additional-system-dependencies:
+    description: 'Additional packages to install'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Install system dependencies
+      shell: bash
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libicu-dev libidn11-dev ${{ inputs.additional-system-dependencies }}
+
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ inputs.ruby-version }}
+        bundler-cache: true
diff --git a/.github/workflows/bundler-audit.yml b/.github/workflows/bundler-audit.yml
index bfb93a36cd..bbc31598c7 100644
--- a/.github/workflows/bundler-audit.yml
+++ b/.github/workflows/bundler-audit.yml
@@ -27,14 +27,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Install native Ruby dependencies
-        run: sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: .ruby-version
-          bundler-cache: true
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
 
       - name: Run bundler-audit
         run: bundle exec bundler-audit
diff --git a/.github/workflows/check-i18n.yml b/.github/workflows/check-i18n.yml
index 39cf32ddc4..ceb385933b 100644
--- a/.github/workflows/check-i18n.yml
+++ b/.github/workflows/check-i18n.yml
@@ -19,25 +19,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install system dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: .ruby-version
-          bundler-cache: true
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install all yarn packages
-        run: yarn --frozen-lockfile
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
+
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: Check for missing strings in English JSON
         run: |
diff --git a/.github/workflows/crowdin-download.yml b/.github/workflows/crowdin-download.yml
index 8268788be4..d3988d2f1a 100644
--- a/.github/workflows/crowdin-download.yml
+++ b/.github/workflows/crowdin-download.yml
@@ -44,14 +44,8 @@ jobs:
         run: sudo chown -R runner:docker .
 
       # This is needed to run the normalize step
-      - name: Install native Ruby dependencies
-        run: sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: .ruby-version
-          bundler-cache: true
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
 
       - name: Run i18n normalize task
         run: bundle exec i18n-tasks normalize
diff --git a/.github/workflows/lint-css.yml b/.github/workflows/lint-css.yml
index bd775dba20..7229bec582 100644
--- a/.github/workflows/lint-css.yml
+++ b/.github/workflows/lint-css.yml
@@ -35,14 +35,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install all yarn packages
-        run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - uses: xt0rted/stylelint-problem-matcher@v1
 
diff --git a/.github/workflows/lint-haml.yml b/.github/workflows/lint-haml.yml
index ca9bd66a4a..8dcab845ee 100644
--- a/.github/workflows/lint-haml.yml
+++ b/.github/workflows/lint-haml.yml
@@ -30,16 +30,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Install native Ruby dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: .ruby-version
-          bundler-cache: true
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
 
       - name: Run haml-lint
         run: |
diff --git a/.github/workflows/lint-js.yml b/.github/workflows/lint-js.yml
index 67d28589cb..1c1ecc2b22 100644
--- a/.github/workflows/lint-js.yml
+++ b/.github/workflows/lint-js.yml
@@ -39,14 +39,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install all yarn packages
-        run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: ESLint
         run: yarn lint:js --max-warnings 0
diff --git a/.github/workflows/lint-json.yml b/.github/workflows/lint-json.yml
index 1d98c52673..7796bf92c4 100644
--- a/.github/workflows/lint-json.yml
+++ b/.github/workflows/lint-json.yml
@@ -31,14 +31,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install all yarn packages
-        run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: Prettier
         run: yarn lint:json
diff --git a/.github/workflows/lint-md.yml b/.github/workflows/lint-md.yml
index 1b3f92c972..51c59937a3 100644
--- a/.github/workflows/lint-md.yml
+++ b/.github/workflows/lint-md.yml
@@ -31,14 +31,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install all yarn packages
-        run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: Prettier
         run: yarn lint:md
diff --git a/.github/workflows/lint-ruby.yml b/.github/workflows/lint-ruby.yml
index 92882a084d..411b323486 100644
--- a/.github/workflows/lint-ruby.yml
+++ b/.github/workflows/lint-ruby.yml
@@ -31,14 +31,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Install native Ruby dependencies
-        run: sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: .ruby-version
-          bundler-cache: true
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
 
       - name: Set-up RuboCop Problem Matcher
         uses: r7kamura/rubocop-problem-matchers-action@v1
diff --git a/.github/workflows/lint-yml.yml b/.github/workflows/lint-yml.yml
index e77cc98891..908bdef5cc 100644
--- a/.github/workflows/lint-yml.yml
+++ b/.github/workflows/lint-yml.yml
@@ -33,14 +33,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install all yarn packages
-        run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: Prettier
         run: yarn lint:yml
diff --git a/.github/workflows/test-js.yml b/.github/workflows/test-js.yml
index 0ef1d9b7c8..79622b6c1f 100644
--- a/.github/workflows/test-js.yml
+++ b/.github/workflows/test-js.yml
@@ -35,14 +35,8 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install all yarn packages
-        run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: Jest testing
         run: yarn jest --reporters github-actions summary
diff --git a/.github/workflows/test-migrations-one-step.yml b/.github/workflows/test-migrations-one-step.yml
index 59287e88cf..5dca8e376d 100644
--- a/.github/workflows/test-migrations-one-step.yml
+++ b/.github/workflows/test-migrations-one-step.yml
@@ -72,16 +72,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install native Ruby dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Set up bundler cache
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: .ruby-version
-          bundler-cache: true
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
 
       - name: Create database
         run: './bin/rails db:create'
diff --git a/.github/workflows/test-migrations-two-step.yml b/.github/workflows/test-migrations-two-step.yml
index 8f3c84d8f3..59485d285d 100644
--- a/.github/workflows/test-migrations-two-step.yml
+++ b/.github/workflows/test-migrations-two-step.yml
@@ -71,16 +71,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install native Ruby dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Set up bundler cache
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: .ruby-version
-          bundler-cache: true
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
 
       - name: Create database
         run: './bin/rails db:create'
diff --git a/.github/workflows/test-ruby.yml b/.github/workflows/test-ruby.yml
index f2d2d02fc0..117e751454 100644
--- a/.github/workflows/test-ruby.yml
+++ b/.github/workflows/test-ruby.yml
@@ -34,24 +34,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install native Ruby dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libicu-dev libidn11-dev
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
 
-      - name: Set up bundler cache
-        uses: ruby/setup-ruby@v1
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
         with:
-          ruby-version: .ruby-version
-          bundler-cache: true
+          onlyProduction: 'true'
 
-      - run: yarn --frozen-lockfile --production
       - name: Precompile assets
         # Previously had set this, but it's not supported
         # export NODE_OPTIONS=--openssl-legacy-provider
@@ -135,20 +125,11 @@ jobs:
           path: './public'
           name: ${{ github.sha }}
 
-      - name: Update package index
-        run: sudo apt-get update
-
-      - name: Install native Ruby dependencies
-        run: sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Install additional system dependencies
-        run: sudo apt-get install -y ffmpeg imagemagick libpam-dev
-
-      - name: Set up bundler cache
-        uses: ruby/setup-ruby@v1
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
         with:
           ruby-version: ${{ matrix.ruby-version}}
-          bundler-cache: true
+          additional-system-dependencies: ffmpeg imagemagick libpam-dev
 
       - name: Load database schema
         run: './bin/rails db:create db:schema:load db:seed'
@@ -210,28 +191,14 @@ jobs:
           path: './public'
           name: ${{ github.sha }}
 
-      - name: Update package index
-        run: sudo apt-get update
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install native Ruby dependencies
-        run: sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Install additional system dependencies
-        run: sudo apt-get install -y ffmpeg imagemagick
-
-      - name: Set up bundler cache
-        uses: ruby/setup-ruby@v1
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
         with:
           ruby-version: ${{ matrix.ruby-version}}
-          bundler-cache: true
+          additional-system-dependencies: ffmpeg imagemagick
 
-      - run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: Load database schema
         run: './bin/rails db:create db:schema:load db:seed'
@@ -328,28 +295,14 @@ jobs:
           path: './public'
           name: ${{ github.sha }}
 
-      - name: Update package index
-        run: sudo apt-get update
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v3
-        with:
-          cache: yarn
-          node-version-file: '.nvmrc'
-
-      - name: Install native Ruby dependencies
-        run: sudo apt-get install -y libicu-dev libidn11-dev
-
-      - name: Install additional system dependencies
-        run: sudo apt-get install -y ffmpeg imagemagick
-
-      - name: Set up bundler cache
-        uses: ruby/setup-ruby@v1
+      - name: Set up Ruby environment
+        uses: ./.github/actions/setup-ruby
         with:
           ruby-version: ${{ matrix.ruby-version}}
-          bundler-cache: true
+          additional-system-dependencies: ffmpeg imagemagick
 
-      - run: yarn --frozen-lockfile
+      - name: Set up Javascript environment
+        uses: ./.github/actions/setup-javascript
 
       - name: Load database schema
         run: './bin/rails db:create db:schema:load db:seed'