diff --git a/.github/workflows/build-crate.yml b/.github/workflows/build-distros.yml
similarity index 50%
rename from .github/workflows/build-crate.yml
rename to .github/workflows/build-distros.yml
index 902b6d02..052c9c7c 100644
--- a/.github/workflows/build-crate.yml
+++ b/.github/workflows/build-distros.yml
@@ -1,6 +1,8 @@
 # Please read the TESTING file before modifying this file
 
-name: Build Crate
+name: Build Crate (Distro toolchain)
+# Build the crate on the platforms with a supported package manager
+# and using the distro-supplied GNAT compiler (with Alire's FSF fallback).
 
 env:
   CHECKS_ORG: alire-project
@@ -15,46 +17,18 @@ on:
 jobs:
 
   build:
-    name: ${{ matrix.os }}::${{ matrix.tag }}
+    name: ${{ matrix.tag }}
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        os:
-          - macos-latest
-          - ubuntu-latest
-          - windows-latest
         tag:
           - arch-rolling              # Arch has its own recent GNAT and pacman
           - centos-stream-fsf-latest  # CentOS is used for unknown package manager
           - debian-stable             # Debian has very good Ada support and apt
           - fedora-latest             # Fedora has its own GNAT and dnf
           - ubuntu-lts                # Ubuntu LTS is a common Debian derivative
-          - ""
-        exclude: # inclusions don't allow to add arrays of values to a scenario
-          - os: ubuntu-latest
-            tag: ""
-          - os: macos-latest
-            tag: arch-rolling
-          - os: macos-latest
-            tag: centos-stream-fsf-latest
-          - os: macos-latest
-            tag: debian-stable
-          - os: macos-latest
-            tag: fedora-latest
-          - os: macos-latest
-            tag: ubuntu-lts
-          - os: windows-latest
-            tag: arch-rolling
-          - os: windows-latest
-            tag: centos-stream-fsf-latest
-          - os: windows-latest
-            tag: debian-stable
-          - os: windows-latest
-            tag: fedora-latest
-          - os: windows-latest
-            tag: ubuntu-lts
 
     steps:
     - name: Check out alire-index
@@ -77,45 +51,23 @@ jobs:
       if: matrix.os == 'ubuntu-latest'
       run: sudo apt update
 
-    - name: Set up GNAT toolchain (FSF)
-      if: matrix.os == 'ubuntu-latest'
-      uses: ada-actions/toolchain@ce2021
-      with:
-        distrib: fsf # faster install?
-
-    - name: Set up GNAT toolchain (Community)
-      if: matrix.os != 'ubuntu-latest'
-      uses: ada-actions/toolchain@ce2020
-      with:
-        distrib: community
-
     - name: Set up stable `alr`
       if: contains(github.base_ref, 'stable-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
         toolchain: --disable-assistant # We want to use the external ones in this workflow
         version: ${{env.ALR_VERSION}}
 
     - name: Set up devel `alr`
       if: contains(github.base_ref, 'devel-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
         toolchain: --disable-assistant # We want to use the external ones in this workflow
         branch: master
 
-    - name: Test crate (Linux)
-      if: matrix.os == 'ubuntu-latest' # docker testing only for linuxes
-      uses: mosteo/actions@docker-run/v1
+    - name: Test crate (${{matrix.tag}})
+      uses: mosteo-actions/docker-run@v1
       with:
         image: alire/gnat:${{matrix.tag}}
         command: ${{env.CHECKS_REPO}}/scripts/gh-build-crate.sh
-        params: -v ${{ github.workspace }}/alire_install/bin/alr:/usr/bin/alr
-
-    - name: Install tar from msys2 (Windows) # Git tar in Actions VM does not seem to work)
-      if: matrix.os == 'windows-latest'
-      run: C:\Users\runneradmin\.cache\alire\msys64\usr\bin\pacman --noconfirm -S tar
-
-    - name: Test crate (Windows/MacOS)
-      if: matrix.os != 'ubuntu-latest' # native testing in Windows/MacOS
-      run: ${{env.CHECKS_REPO}}/scripts/gh-build-crate.sh
-      shell: bash
+        params: -v ${{ github.workspace }}/alire_install/bin/alr:/usr/bin/alr
\ No newline at end of file
diff --git a/.github/workflows/build-native.yml b/.github/workflows/build-native.yml
index f2820242..a7121050 100644
--- a/.github/workflows/build-native.yml
+++ b/.github/workflows/build-native.yml
@@ -1,7 +1,7 @@
 # Please read the TESTING file before modifying this file
 
-name: Toolchain
-# Build the submitted crate with a native toolchain from Alire
+name: Build Crate (Alire toolchain)
+# Build the crate with a native toolchain from Alire
 
 env:
   CHECKS_ORG: alire-project
@@ -44,33 +44,17 @@ jobs:
         ref: ${{github.base_ref}}
         path: ${{env.CHECKS_REPO}}
 
-    # For the devel branch we need a compiler available to build alr in
-    # setup-alire. We will be able to get rid of this once composite actions
-    # support conditional steps.
-
-    - name: Set up GNAT toolchain (FSF)
-      if: (matrix.os == 'ubuntu-latest') && (contains(github.base_ref, 'devel-'))
-      uses: ada-actions/toolchain@ce2020
-      with:
-        distrib: fsf # faster install?
-
-    - name: Set up GNAT toolchain (Community)
-      if: (matrix.os != 'ubuntu-latest') && (contains(github.base_ref, 'devel-'))
-      uses: ada-actions/toolchain@ce2020
-      with:
-        distrib: community
-
     # By default, this sets up the newest indexed native toolchain
     - name: Set up stable `alr`
       if: contains(github.base_ref, 'stable-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
         version: ${{env.ALR_VERSION}}
 
     # By default, this sets up the newest indexed native toolchain
     - name: Set up devel `alr`
       if: contains(github.base_ref, 'devel-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
         branch: 'master'
 
diff --git a/.github/workflows/diff-release.yml b/.github/workflows/diff-release.yml
index 3a5476f5..8d0612bd 100644
--- a/.github/workflows/diff-release.yml
+++ b/.github/workflows/diff-release.yml
@@ -39,26 +39,14 @@ jobs:
 
     - name: Set up stable `alr`
       if: contains(github.base_ref, 'stable-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
         toolchain: --disable-assistant # We don't need the compiler
         version: ${{env.ALR_VERSION}}
 
-    - name: Set up GNAT toolchain (FSF)
-      if: (matrix.os == 'ubuntu-latest') && (contains(github.base_ref, 'devel-'))
-      uses: ada-actions/toolchain@ce2020
-      with:
-        distrib: fsf # faster install?
-
-    - name: Set up GNAT toolchain (Community)
-      if: (matrix.os != 'ubuntu-latest') && (contains(github.base_ref, 'devel-'))
-      uses: ada-actions/toolchain@ce2020
-      with:
-        distrib: community
-
     - name: Set up devel `alr`
       if: contains(github.base_ref, 'devel-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
         toolchain: --disable-assistant # We don't need the compiler
         branch: master
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c5922104..91aca76d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,19 +12,13 @@ jobs:
 
     - name: Set up stable `alr`
       if: contains(github.base_ref, 'stable-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
-        version: 1.2.1
-
-    - name: Set up GNAT for devel `alr`
-      if: contains(github.base_ref, 'devel-')
-      uses: ada-actions/toolchain@ce2020
-      with:
-        distrib: fsf
+        version: 1.2.2
 
     - name: Set up devel `alr`
       if: contains(github.base_ref, 'devel-')
-      uses: alire-project/setup-alire@v1
+      uses: alire-project/setup-alire@v2
       with:
         branch: master