diff --git a/.github/workflows/nix-action-8.18.yml b/.github/workflows/nix-action-8.18.yml
index 576e0c8..06e272a 100644
--- a/.github/workflows/nix-action-8.18.yml
+++ b/.github/workflows/nix-action-8.18.yml
@@ -4,23 +4,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -37,8 +37,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target coq
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.18\" --argstr job \"coq\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.18\" --argstr job \"coq\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -51,23 +51,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -84,8 +84,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target mathcomp
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.18\" --argstr job \"mathcomp\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.18\" --argstr job \"mathcomp\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -130,23 +130,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -163,18 +163,18 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target mathcomp-analysis
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.18\" --argstr job \"mathcomp-analysis\" \\\n   --dry-run 2>&1\
-        \ > /dev/null)\necho $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"\
-        built:\" | sed \"s/.*/built/\") >> $GITHUB_OUTPUT\n"
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.18\" --argstr job \"mathcomp-analysis\" \\\n   --dry-run 2>&1 >
+        /dev/null)\necho $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\"\
+        \ | sed \"s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: coq'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.18" --argstr
         job "coq"
     - if: steps.stepCheck.outputs.status == 'built'
-      name: 'Building/fetching previous CI target: mathcomp-classical'
+      name: 'Building/fetching previous CI target: mathcomp-reals'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.18" --argstr
-        job "mathcomp-classical"
+        job "mathcomp-reals"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: mathcomp-field'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.18" --argstr
@@ -198,23 +198,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -231,8 +231,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target ssprove
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.18\" --argstr job \"ssprove\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.18\" --argstr job \"ssprove\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -264,7 +264,7 @@ jobs:
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.18" --argstr
         job "ssprove"
 name: Nix CI for bundle 8.18
-'on':
+on:
   pull_request:
     paths:
     - .github/workflows/nix-action-8.18.yml
@@ -278,3 +278,4 @@ name: Nix CI for bundle 8.18
   push:
     branches:
     - main
+  workflow_dispatch:
diff --git a/.github/workflows/nix-action-8.19.yml b/.github/workflows/nix-action-8.19.yml
index 5ab478a..13278b8 100644
--- a/.github/workflows/nix-action-8.19.yml
+++ b/.github/workflows/nix-action-8.19.yml
@@ -4,23 +4,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -37,8 +37,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target coq
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.19\" --argstr job \"coq\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.19\" --argstr job \"coq\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -51,23 +51,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -84,8 +84,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target mathcomp
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.19\" --argstr job \"mathcomp\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.19\" --argstr job \"mathcomp\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -130,23 +130,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -163,18 +163,18 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target mathcomp-analysis
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.19\" --argstr job \"mathcomp-analysis\" \\\n   --dry-run 2>&1\
-        \ > /dev/null)\necho $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"\
-        built:\" | sed \"s/.*/built/\") >> $GITHUB_OUTPUT\n"
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.19\" --argstr job \"mathcomp-analysis\" \\\n   --dry-run 2>&1 >
+        /dev/null)\necho $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\"\
+        \ | sed \"s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: coq'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.19" --argstr
         job "coq"
     - if: steps.stepCheck.outputs.status == 'built'
-      name: 'Building/fetching previous CI target: mathcomp-classical'
+      name: 'Building/fetching previous CI target: mathcomp-reals'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.19" --argstr
-        job "mathcomp-classical"
+        job "mathcomp-reals"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: mathcomp-field'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.19" --argstr
@@ -198,23 +198,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -231,8 +231,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target ssprove
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.19\" --argstr job \"ssprove\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.19\" --argstr job \"ssprove\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -264,7 +264,7 @@ jobs:
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.19" --argstr
         job "ssprove"
 name: Nix CI for bundle 8.19
-'on':
+on:
   pull_request:
     paths:
     - .github/workflows/nix-action-8.19.yml
@@ -278,3 +278,4 @@ name: Nix CI for bundle 8.19
   push:
     branches:
     - main
+  workflow_dispatch:
diff --git a/.github/workflows/nix-action-8.20.yml b/.github/workflows/nix-action-8.20.yml
index 01b632b..ee52af5 100644
--- a/.github/workflows/nix-action-8.20.yml
+++ b/.github/workflows/nix-action-8.20.yml
@@ -4,23 +4,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -37,8 +37,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target coq
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.20\" --argstr job \"coq\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.20\" --argstr job \"coq\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -51,23 +51,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -84,8 +84,8 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target mathcomp
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.20\" --argstr job \"mathcomp\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.20\" --argstr job \"mathcomp\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
@@ -116,6 +116,10 @@ jobs:
       name: 'Building/fetching previous CI target: mathcomp-character'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
         job "mathcomp-character"
+    - if: steps.stepCheck.outputs.status == 'built'
+      name: 'Building/fetching previous CI target: hierarchy-builder'
+      run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
+        job "hierarchy-builder"
     - if: steps.stepCheck.outputs.status == 'built'
       name: Building/fetching current CI target
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
@@ -126,23 +130,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -159,22 +163,30 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target mathcomp-analysis
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.20\" --argstr job \"mathcomp-analysis\" \\\n   --dry-run 2>&1\
-        \ > /dev/null)\necho $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"\
-        built:\" | sed \"s/.*/built/\") >> $GITHUB_OUTPUT\n"
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.20\" --argstr job \"mathcomp-analysis\" \\\n   --dry-run 2>&1 >
+        /dev/null)\necho $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\"\
+        \ | sed \"s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: coq'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
         job "coq"
     - if: steps.stepCheck.outputs.status == 'built'
-      name: 'Building/fetching previous CI target: mathcomp-classical'
+      name: 'Building/fetching previous CI target: mathcomp-reals'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
-        job "mathcomp-classical"
+        job "mathcomp-reals"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: mathcomp-field'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
         job "mathcomp-field"
+    - if: steps.stepCheck.outputs.status == 'built'
+      name: 'Building/fetching previous CI target: mathcomp-bigenough'
+      run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
+        job "mathcomp-bigenough"
+    - if: steps.stepCheck.outputs.status == 'built'
+      name: 'Building/fetching previous CI target: hierarchy-builder'
+      run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
+        job "hierarchy-builder"
     - if: steps.stepCheck.outputs.status == 'built'
       name: Building/fetching current CI target
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
@@ -186,23 +198,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Determine which commit to initially checkout
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha\
-        \ }}\" >> $GITHUB_ENV\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"target_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  echo \"target_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
         ref: ${{ env.target_commit }}
     - name: Determine which commit to test
-      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{\
-        \ github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{\
-        \ github.event.repository.html_url }} refs/pull/${{ github.event.number }}/merge\
-        \ | cut -f1)\n  mergeable=$(git merge --no-commit --no-ff ${{ github.event.pull_request.base.sha\
-        \ }} > /dev/null 2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n\
-        \  if [ -z \"$merge_commit\" -o \"x$mergeable\" != \"x0\" ]; then\n    echo\
-        \ \"tested_commit=${{ github.event.pull_request.head.sha }}\" >> $GITHUB_ENV\n\
-        \  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n  fi\nfi\n"
+      run: "if [ ${{ github.event_name }} = \"push\" ]; then\n  echo \"tested_commit=${{
+        github.sha }}\" >> $GITHUB_ENV\nelse\n  merge_commit=$(git ls-remote ${{ github.event.repository.html_url
+        }} refs/pull/${{ github.event.number }}/merge | cut -f1)\n  mergeable=$(git
+        merge --no-commit --no-ff ${{ github.event.pull_request.base.sha }} > /dev/null
+        2>&1; echo $?; git merge --abort > /dev/null 2>&1 || true)\n  if [ -z \"$merge_commit\"\
+        \ -o \"x$mergeable\" != \"x0\" ]; then\n    echo \"tested_commit=${{ github.event.pull_request.head.sha
+        }}\" >> $GITHUB_ENV\n  else\n    echo \"tested_commit=$merge_commit\" >> $GITHUB_ENV\n\
+        \  fi\nfi\n"
     - name: Git checkout
       uses: actions/checkout@v4
       with:
@@ -219,14 +231,18 @@ jobs:
         name: coq
     - id: stepCheck
       name: Checking presence of CI target ssprove
-      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr\
-        \ bundle \"8.20\" --argstr job \"ssprove\" \\\n   --dry-run 2>&1 > /dev/null)\n\
+      run: "nb_dry_run=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link \\\n   --argstr
+        bundle \"8.20\" --argstr job \"ssprove\" \\\n   --dry-run 2>&1 > /dev/null)\n
         echo $nb_dry_run\necho status=$(echo $nb_dry_run | grep \"built:\" | sed \"\
         s/.*/built/\") >> $GITHUB_OUTPUT\n"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: coq'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
         job "coq"
+    - if: steps.stepCheck.outputs.status == 'built'
+      name: 'Building/fetching previous CI target: equations'
+      run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
+        job "equations"
     - if: steps.stepCheck.outputs.status == 'built'
       name: 'Building/fetching previous CI target: mathcomp-ssreflect'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
@@ -235,12 +251,20 @@ jobs:
       name: 'Building/fetching previous CI target: mathcomp-analysis'
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
         job "mathcomp-analysis"
+    - if: steps.stepCheck.outputs.status == 'built'
+      name: 'Building/fetching previous CI target: extructures'
+      run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
+        job "extructures"
+    - if: steps.stepCheck.outputs.status == 'built'
+      name: 'Building/fetching previous CI target: deriving'
+      run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
+        job "deriving"
     - if: steps.stepCheck.outputs.status == 'built'
       name: Building/fetching current CI target
       run: NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link --argstr bundle "8.20" --argstr
         job "ssprove"
 name: Nix CI for bundle 8.20
-'on':
+on:
   pull_request:
     paths:
     - .github/workflows/nix-action-8.20.yml
@@ -254,3 +278,4 @@ name: Nix CI for bundle 8.20
   push:
     branches:
     - main
+  workflow_dispatch:
diff --git a/.nix/coq-nix-toolbox.nix b/.nix/coq-nix-toolbox.nix
index 879ef3f..556abf8 100644
--- a/.nix/coq-nix-toolbox.nix
+++ b/.nix/coq-nix-toolbox.nix
@@ -1 +1 @@
-"ebb1f62a5884802e598c662b22c978688a0e1a4a"
+"b3008c9923a0f230078c0706b3427dc5fb75a9a0"
diff --git a/.nix/nixpkgs.nix b/.nix/nixpkgs.nix
index 551bfce..0d13734 100644
--- a/.nix/nixpkgs.nix
+++ b/.nix/nixpkgs.nix
@@ -1,4 +1,4 @@
 fetchTarball {
-         url = https://github.com/NixOS/nixpkgs/archive/045a097bde2100af7301e50632a02d0425031042.tar.gz;
-         sha256 = "1gw6xkyzhc08q93dkb6p2s0c8b7vhj9nq5amwn5146ag38cp0j3l";
+         url = https://github.com/NixOS/nixpkgs/archive/470e6e641f412894086b6df2f204847bd3905f17.tar.gz;
+         sha256 = "196l018hbmykm6bg82mnzp9qdbcqjm3rhiia4qsvybxd90f1dbb3";
        }