diff --git a/.github/workflows/actionlint.yml b/.github/workflows/actionlint.yml
index 4f512d84b1..83ed8787b3 100644
--- a/.github/workflows/actionlint.yml
+++ b/.github/workflows/actionlint.yml
@@ -1,6 +1,7 @@
 name: Actionlint
 
 on:
+  merge_group:
   pull_request:
 
 jobs:
@@ -13,20 +14,16 @@ jobs:
       # actionlint is not going to install its own shellcheck.
       # This also makes sure that this pipeline runs using
       # the same shellcheck as the ones in Nix shells of developers.
-      - name: Install Nix with good defaults
-        uses: input-output-hk/install-nix-action@v20
+      - uses: cachix/install-nix-action@v30
         with:
+          nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
             substituters = https://cache.iog.io/ https://cache.nixos.org/
-          nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/install-nix-action@v18
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
-      # Make the Nix environment available to next steps
+
       - uses: rrbutani/use-nix-shell-action@v1
 
-      - name: actionlint
+      - name: Run Actionlint
         run: |
           for file in $(git ls-files ".github/workflows/*.y*ml")
           do
diff --git a/.github/workflows/check-cabal-files.yml b/.github/workflows/check-cabal-files.yml
index dc8a7048b9..3cc3532da3 100644
--- a/.github/workflows/check-cabal-files.yml
+++ b/.github/workflows/check-cabal-files.yml
@@ -9,18 +9,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - name: Workaround runner image issue
-      if: runner.os == 'Linux'
-      # https://github.com/actions/runner-images/issues/7061
-      run: sudo chown -R "$USER" /usr/local/.ghcup
+      - uses: actions/checkout@v4
 
-    - name: Install Haskell
-      uses: input-output-hk/setup-haskell@v1
-      id: setup-haskell
-      with:
-        cabal-version: "3.10.1.0"
+      - uses: cachix/install-nix-action@v30
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+          extra_nix_config: |
+            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
+            substituters = https://cache.iog.io/ https://cache.nixos.org/
 
-    - uses: actions/checkout@v3
+      - uses: rrbutani/use-nix-shell-action@v1
 
-    - name: Cabal check
-      run: ./scripts/ci/check-cabal-files.sh
+      - name: Cabal check
+        run: ./scripts/ci/check-cabal-files.sh
diff --git a/.github/workflows/check-cabal-gild.yml b/.github/workflows/check-cabal-gild.yml
index 569aa9e1ea..dee17ac1b4 100644
--- a/.github/workflows/check-cabal-gild.yml
+++ b/.github/workflows/check-cabal-gild.yml
@@ -7,42 +7,37 @@ on:
 jobs:
   check-cabal-gild:
     runs-on: ubuntu-latest
-
-    env:
-      CABAL_GILD_VERSION: "1.3.1.2"
-
     steps:
-    - name: Download cabal-gild
-      run: |
-        cabal_gild_path="$(mktemp -d)"
-        version="${{env.CABAL_GILD_VERSION}}"
-        curl -sL \
-          "https://github.com/tfausak/cabal-gild/releases/download/$version/cabal-gild-$version-linux-x64.tar.gz" \
-          | tar -C "$cabal_gild_path" -xz
-
-        echo "PATH=$cabal_gild_path:$PATH" >> "$GITHUB_ENV"
-
-    - uses: actions/checkout@v4
-
-    - name: Run cabal-gild over all modified files
-      run: |
-        rc="0"
-        echo "cabal-gild version: ${{env.CABAL_GILD_VERSION}}"        
-        for file in $(git ls-files "*.cabal")
-        do
-          echo "cabal-gild --mode=check --input=$file"
-          if ! cabal-gild --mode=check --input="$file"
-          then
-            cabal-gild --mode=format --io="$file"
-            echo "💣 $file is badly formatted. Fix it with:"
-            echo "cabal-gild --mode=format --io=$file"
-            echo -e
-            echo "Diff for $file:"
-            git diff "$file"
-            echo -e
-            rc="1"
-          fi
-        done
-        
-        exit $rc
+      - uses: actions/checkout@v4
+
+      - uses: cachix/install-nix-action@v30
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+          extra_nix_config: |
+            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
+            substituters = https://cache.iog.io/ https://cache.nixos.org/
+
+      - uses: rrbutani/use-nix-shell-action@v1
+
+      - name: Run cabal-gild over all modified files
+        run: |
+          rc="0"
+           echo "cabal-gild version: $(cabal-gild --version)"
+          for file in $(git ls-files "*.cabal")
+          do
+            echo "cabal-gild --mode=check --input=$file"
+            if ! cabal-gild --mode=check --input="$file"
+            then
+              cabal-gild --mode=format --io="$file"
+              echo "💣 $file is badly formatted. Fix it with:"
+              echo "cabal-gild --mode=format --io=$file"
+              echo -e
+              echo "Diff for $file:"
+              git diff "$file"
+              echo -e
+              rc="1"
+            fi
+          done
+
+          exit $rc
 
diff --git a/.github/workflows/check-formatting.yml b/.github/workflows/check-formatting.yml
index 1040c55c2f..61768513e3 100644
--- a/.github/workflows/check-formatting.yml
+++ b/.github/workflows/check-formatting.yml
@@ -1,4 +1,4 @@
-name: Check Haskell formatting 
+name: Check Haskell formatting
 
 on:
   merge_group:
@@ -22,50 +22,49 @@ jobs:
   check-formatting:
     runs-on: ubuntu-latest
 
-    env:
-      FOURMOLU_VERSION: "0.16.2.0"
-      STYLISH_HASKELL_VERSION: "0.14.6.0"
-
     steps:
-    - name: Download Fourmolu
-      run: |
-        fourmolu_path="$(mktemp -d)"
-        version="${{env.FOURMOLU_VERSION}}"
-        curl -sL \
-          "https://github.com/fourmolu/fourmolu/releases/download/v$version/fourmolu-$version-linux-x86_64" > "$fourmolu_path/fourmolu"
-        echo "PATH=$fourmolu_path:$PATH" >> "$GITHUB_ENV"
-        chmod u+rwx "$fourmolu_path/fourmolu"
+      - uses: actions/checkout@v4
 
-    - name: Download stylish-haskell
-      run: |
-        stylish_haskell_path="$(mktemp -d)"
-        version="${{ env.STYLISH_HASKELL_VERSION }}"
-        curl -sL \
-          "https://github.com/haskell/stylish-haskell/releases/download/v$version/stylish-haskell-v$version-linux-x86_64.tar.gz" \
-          | tar -C "$stylish_haskell_path" -xz
-        echo "PATH=$stylish_haskell_path/stylish-haskell-v$version-linux-x86_64:$PATH" >> "$GITHUB_ENV"
+      - uses: cachix/install-nix-action@v30
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+          extra_nix_config: |
+            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
+            substituters = https://cache.iog.io/ https://cache.nixos.org/
 
-    - uses: actions/checkout@v3
+      - uses: rrbutani/use-nix-shell-action@v1
 
-    - name: Run formatting over all Haskell files (always succeeds)
-      run: |
-        git add .
-        git stash
+      - name: Run formatting over all Haskell files (always succeeds)
+        run: |
+          git add .
+          git stash
 
-        for x in $(git ls-tree --full-tree --name-only -r HEAD); do
-          "$(git rev-parse --show-toplevel)/scripts/devshell/prettify" "$x"
-        done
+          for x in $(git ls-tree --full-tree --name-only -r HEAD); do
+            if [ "${x##*.}" == "hs" ]; then
+              if grep -qE '^#' "$x"; then
+                echo "$x contains CPP.  Skipping."
+              else
+                "$(git rev-parse --show-toplevel)/scripts/devshell/prettify" "$x"
+              fi
+            fi
+          done
 
-        git --no-pager diff
+          git --no-pager diff
 
-    - name: Run formatting over all modified files
-      run: |
-        git add .
-        git stash
-        git fetch origin ${{ github.base_ref }} --unshallow
-        for x in $(git diff --name-only --diff-filter=ACMR origin/${{ github.base_ref }}..HEAD); do
-          "$(git rev-parse --show-toplevel)/scripts/devshell/prettify" "$x"
-        done
+      - name: Run formatting over all modified files
+        run: |
+          git add .
+          git stash
+          git fetch origin ${{ github.base_ref }} --unshallow
+          for x in $(git diff --name-only --diff-filter=ACMR origin/${{ github.base_ref }}..HEAD); do
+            if [ "${x##*.}" == "hs" ]; then
+              if grep -qE '^#' "$x"; then
+                echo "$x contains CPP.  Skipping."
+              else
+                "$(git rev-parse --show-toplevel)/scripts/devshell/prettify" "$x"
+              fi
+            fi
+          done
 
-        git --no-pager diff --exit-code
+          git --no-pager diff --exit-code
 
diff --git a/.github/workflows/check-git-dependencies.yml b/.github/workflows/check-git-dependencies.yml
index 8639392485..a7caa10a5e 100644
--- a/.github/workflows/check-git-dependencies.yml
+++ b/.github/workflows/check-git-dependencies.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Check git dependencies
       run: |
diff --git a/.github/workflows/check-hlint.yml b/.github/workflows/check-hlint.yml
index c8b6a8658c..adf9cea84d 100644
--- a/.github/workflows/check-hlint.yml
+++ b/.github/workflows/check-hlint.yml
@@ -14,6 +14,6 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: haskell-actions/hlint-scan@v1
diff --git a/.github/workflows/check-pr-changelog.yml b/.github/workflows/check-pr-changelog.yml
index e59023b5c5..8edcf155b3 100644
--- a/.github/workflows/check-pr-changelog.yml
+++ b/.github/workflows/check-pr-changelog.yml
@@ -8,12 +8,12 @@ jobs:
   check-changelog:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         if: ${{ github.event_name != 'merge_group' }}
         with:
-          node-version: 16
+          node-version: 22
 
       - run: npm install js-yaml@4.1.0
         if: ${{ github.event_name != 'merge_group' }}
diff --git a/.github/workflows/github-page.yml b/.github/workflows/github-page.yml
index 1ea2acd980..6871ac83ab 100644
--- a/.github/workflows/github-page.yml
+++ b/.github/workflows/github-page.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+  workflow_dispatch:
 
 jobs:
   build:
@@ -14,54 +15,46 @@ jobs:
         shell: bash
 
     steps:
-    - name: Install Nix
-      uses: cachix/install-nix-action@v18
-      with:
-        # Use last stable nixos channel and the same nix as in channel:
-        install_url: https://releases.nixos.org/nix/nix-2.11.1/install
-        nix_path: nixpkgs=channel:nixos-22.11
-        github_access_token: ${{ secrets.GITHUB_TOKEN }}
-        extra_nix_config: |
-          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-          experimental-features = nix-command flakes
-          allow-import-from-derivation = true
-          substituters = https://cache.nixos.org https://cache.iog.io
-          trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
+      - uses: actions/checkout@v4
 
-    - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v30
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+          extra_nix_config: |
+            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
+            substituters = https://cache.iog.io/ https://cache.nixos.org/
 
-    - name: Fetch nix cache and update cabal indices
-      run: |
-        nix develop .\#haddockShell --command \
+      - uses: rrbutani/use-nix-shell-action@v1
+
+      - name: Update cabal indices
+        run: |
           cabal update
 
-    - name: Build whole project
-      run: |
-        nix develop .\#haddockShell --command \
+      - name: Build whole project
+        run: |
           cabal build all
 
-    - name: Build documentation
-      run: |
-        nix develop .\#haddockShell --command \
+      - name: Build documentation
+        run: |
           cabal haddock-project --output=./haddocks --internal --foreign-libraries
 
-    - name: Compress haddocks
-      run: |
-        tar -czf haddocks.tgz -C haddocks .
-
-    - name: Upload haddocks artifact
-      uses: actions/upload-artifact@v4
-      if: ${{ always() }}
-      continue-on-error: true
-      with:
-        name: haddocks
-        path: ./haddocks.tgz
-
-    - name: Deploy documentation to gh-pages 🚀
-      if: github.ref == 'refs/heads/master'
-      uses: peaceiris/actions-gh-pages@v3
-      with:
-        github_token: ${{ secrets.GITHUB_TOKEN || github.token }}
-        publish_dir: haddocks
-        cname: cardano-api.cardano.intersectmbo.org
-        force_orphan: true
+      - name: Compress haddocks
+        run: |
+          tar -czf haddocks.tgz -C haddocks .
+
+      - name: Upload haddocks artifact
+        uses: actions/upload-artifact@v4
+        if: ${{ always() }}
+        continue-on-error: true
+        with:
+          name: haddocks
+          path: ./haddocks.tgz
+
+      - name: Deploy documentation to gh-pages 🚀
+        if: github.ref == 'refs/heads/master'
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN || github.token }}
+          publish_dir: haddocks
+          cname: cardano-api.cardano.intersectmbo.org
+          force_orphan: true
diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 1807e65b7e..acdace911b 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         ghc: ["8.10.7", "9.6", "9.10"]
-        cabal: ["3.12"]
+        cabal: ["3.14"]
         sys:
           - { os: windows-latest, shell: 'C:/msys64/usr/bin/bash.exe -e {0}' }
           - { os: ubuntu-latest, shell: bash }
diff --git a/.github/workflows/hls.yml b/.github/workflows/hls.yml
index 729afa8dc7..162716042b 100644
--- a/.github/workflows/hls.yml
+++ b/.github/workflows/hls.yml
@@ -5,10 +5,10 @@ on:
   push:
     branches:
       - master
- 
+
 permissions:
   contents: read
-  
+
 jobs:
 
   test-hls-works:
@@ -16,27 +16,28 @@ jobs:
       # Modify this value to "invalidate" the cache.
       HLS_CACHE_VERSION: "2024-07-24"
 
-  
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - name: Check out repo
-        uses: actions/checkout@v4
-      - name: Install Nix with good defaults
-        uses: input-output-hk/install-nix-action@v20
+      - uses: actions/checkout@v4
+
+      - uses: cachix/install-nix-action@v30
         with:
+          nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
             substituters = https://cache.iog.io/ https://cache.nixos.org/
-          nix_path: nixpkgs=channel:nixos-unstable 
-      - name: Open nix environment
-        uses: rrbutani/use-nix-shell-action@v1
+
+      - uses: rrbutani/use-nix-shell-action@v1
+
       - name: Update dependencies
         run: cabal update; cabal freeze
+
       - name: Obtain GHC version
         run: |
           echo "VERSION=$(ghc --numeric-version)" >> "$GITHUB_OUTPUT"
         id: ghc
+
       - name: HLS caching
         uses: actions/cache@v4
         with:
@@ -44,10 +45,11 @@ jobs:
             /home/runner/.cache/hie-bios
             /home/runner/.cache/ghcide
             /home/runner/.local/state/cabal
-            .ghc.environment.x86_64-linux-9.8.2
+            .ghc.environment.x86_64-linux-*
             dist-newstyle
           key: hls-cache-${{ env.HLS_CACHE_VERSION }}-${{ runner.os }}-${{ steps.ghc.outputs.VERSION }}-${{ hashFiles('**/cabal.project.freeze') }}-${{ hashFiles('**/*.cabal', '**/cabal.project') }}
           restore-keys: |
             hls-cache-${{ env.HLS_CACHE_VERSION }}-${{ runner.os }}-${{ steps.ghc.outputs.VERSION }}-${{ hashFiles('**/cabal.project.freeze') }}-
+
       - name: Test HLS works
         run: haskell-language-server
diff --git a/.github/workflows/markdown-links-ci-check.yml b/.github/workflows/markdown-links-ci-check.yml
index f8db014fa4..3a8dd7130a 100644
--- a/.github/workflows/markdown-links-ci-check.yml
+++ b/.github/workflows/markdown-links-ci-check.yml
@@ -8,7 +8,7 @@ jobs:
   markdown-link-check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: gaurav-nelson/github-action-markdown-link-check@v1
       with:
         use-quiet-mode: yes
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index 6bdb89c27b..d3499821ca 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -7,6 +7,7 @@ name: Shellcheck
 # is consistent with the one of developers.
 
 on:
+  merge_group:
   pull_request:
 
 jobs:
@@ -14,18 +15,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Install Nix with good defaults
-        uses: input-output-hk/install-nix-action@v20
+
+      - uses: cachix/install-nix-action@v30
         with:
+          nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
             substituters = https://cache.iog.io/ https://cache.nixos.org/
-          nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/install-nix-action@v18
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
-      # Make the Nix environment available to next steps
+
       - uses: rrbutani/use-nix-shell-action@v1
+
       - name: Shellcheck
         run: |
           for file in $(git ls-files "*.sh")
diff --git a/.github/workflows/stale-bot.yml b/.github/workflows/stale-bot.yml
index 5fef42c6ec..0133827ca6 100644
--- a/.github/workflows/stale-bot.yml
+++ b/.github/workflows/stale-bot.yml
@@ -7,7 +7,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v6
+      - uses: actions/stale@v9
         with:
           stale-issue-message: 'This issue is stale because it has been open 30 days with no activity.  Remove stale label or comment or this will be closed in 120 days.'
           stale-pr-message: 'This PR is stale because it has been open 45 days with no activity.'
diff --git a/flake.lock b/flake.lock
index b5b3c3417a..8bd2615d3d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -202,14 +202,14 @@
         "type": "github"
       }
     },
-    "hackage": {
+    "hackageNix": {
       "flake": false,
       "locked": {
-        "lastModified": 1736382484,
-        "narHash": "sha256-z1wBpMV1uqkZKCo4q4aXVwHcinYtwD0LHI5AEDtpnVA=",
+        "lastModified": 1738110484,
+        "narHash": "sha256-Cxn2nFTYSgdAsg51iQ/aWfa0sEwUT1LqlfNCOVbfNNU=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "db572909cbd9ea2179284e594e04a0ec6e480ce0",
+        "rev": "2688306d0e2b6d721040d4e0e7405553cf64cb7e",
         "type": "github"
       },
       "original": {
@@ -227,7 +227,9 @@
         "cardano-shell": "cardano-shell",
         "flake-compat": "flake-compat_2",
         "ghc-8.6.5-iohk": "ghc-8.6.5-iohk",
-        "hackage": "hackage",
+        "hackage": [
+          "hackageNix"
+        ],
         "hls-1.10": "hls-1.10",
         "hls-2.0": "hls-2.0",
         "hls-2.2": "hls-2.2",
@@ -258,15 +260,16 @@
         "stackage": "stackage"
       },
       "locked": {
-        "lastModified": 1723683036,
-        "narHash": "sha256-pT74TrE+bCaeXhYLYJrZVocwopwwua4qOwN7waUdUpU=",
+        "lastModified": 1726275037,
+        "narHash": "sha256-q0+NlcOGV1eQRN1FjLpt5li6iyPQPeky37hwP5JLqVU=",
         "owner": "input-output-hk",
         "repo": "haskell.nix",
-        "rev": "88aeace47b5e43cb4df5f96e754179293c06f47c",
+        "rev": "a93d40302777a9ce268b3bc57caae3f7fdae1ce1",
         "type": "github"
       },
       "original": {
         "owner": "input-output-hk",
+        "ref": "2024.09.15",
         "repo": "haskell.nix",
         "type": "github"
       }
@@ -770,6 +773,7 @@
         "cardano-mainnet-mirror": "cardano-mainnet-mirror",
         "flake-compat": "flake-compat",
         "flake-utils": "flake-utils",
+        "hackageNix": "hackageNix",
         "haskellNix": "haskellNix",
         "iohkNix": "iohkNix",
         "nixpkgs": [
@@ -815,11 +819,11 @@
     "stackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1723594352,
-        "narHash": "sha256-cQVhF1M1et3/XNE1sclwH39prxIDMUojTdnW61t3YrM=",
+        "lastModified": 1726100060,
+        "narHash": "sha256-nvxogFYvwoUuqTHKyn1vcOuQFKEGGlXiTNzTDHeOImk=",
         "owner": "input-output-hk",
         "repo": "stackage.nix",
-        "rev": "c077da02c56031a78adc4bf0cf2b182effc895ed",
+        "rev": "732fcc1460200a3050697a056a0fe9d460d0dbec",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index bea3960c12..cfcf10755a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,20 +2,32 @@
   description = "cardano-api";
 
   inputs = {
-    haskellNix.url = "github:input-output-hk/haskell.nix";
+    hackageNix = {
+      url = "github:input-output-hk/hackage.nix";
+      flake = false;
+    };
+    haskellNix = {
+      url = "github:input-output-hk/haskell.nix?ref=2024.09.15";
+      inputs.hackage.follows = "hackageNix";
+    };
     nixpkgs.follows = "haskellNix/nixpkgs-unstable";
     iohkNix.url = "github:input-output-hk/iohk-nix";
     flake-utils.url = "github:hamishmack/flake-utils/hkm/nested-hydraJobs";
+    # non-flake nix compatibility
+    flake-compat = {
+      url = "github:edolstra/flake-compat";
+      flake = false;
+    };
 
-    cardano-mainnet-mirror.url = "github:input-output-hk/cardano-mainnet-mirror";
-    cardano-mainnet-mirror.flake = false;
-
-    CHaP.url = "github:intersectmbo/cardano-haskell-packages?ref=repo";
-    CHaP.flake = false;
+    cardano-mainnet-mirror = {
+      url = "github:input-output-hk/cardano-mainnet-mirror";
+      flake = false;
+    };
 
-    # non-flake nix compatibility
-    flake-compat.url = "github:edolstra/flake-compat";
-    flake-compat.flake = false;
+    CHaP = {
+      url = "github:intersectmbo/cardano-haskell-packages?ref=repo";
+      flake = false;
+    };
   };
 
   outputs = inputs: let
@@ -28,32 +40,9 @@
 
     # see flake `variants` below for alternative compilers
     defaultCompiler = "ghc982";
-    haddockShellCompiler = defaultCompiler;
-    mingwCompiler = "ghc966";
-
-    cabalHeadOverlay = final: prev: {
-      cabal-head =
-        (final.haskell-nix.cabalProject {
-          # cabal master commit containing https://github.com/haskell/cabal/pull/8726
-          # this fixes haddocks generation
-          src = final.fetchFromGitHub {
-            owner = "haskell";
-            repo = "cabal";
-            rev = "6eaba73ac95c62f8dc576e227b5f9c346910303c";
-            hash = "sha256-Uu/w6AK61F7XPxtKe+NinuOR4tLbaT6rwxVrQghDQjo=";
-          };
-          index-state = "2024-07-03T00:00:00Z";
-          compiler-nix-name = haddockShellCompiler;
-          cabalProject = ''
-            packages: Cabal-syntax Cabal cabal-install-solver cabal-install
-          '';
-          configureArgs = "--disable-benchmarks --disable-tests";
-        })
-        .cabal-install
-        .components
-        .exes
-        .cabal;
-    };
+    # Used for cross compilation, and so referenced in .github/workflows/release-upload.yml. Adapt the
+    # latter if you change this value.
+    crossCompilerVersion = "ghc966";
   in
     inputs.flake-utils.lib.eachSystem supportedSystems (
       system: let
@@ -67,7 +56,6 @@
             inputs.haskellNix.overlay
             # configure haskell.nix to use iohk-nix crypto librairies.
             inputs.iohkNix.overlays.haskell-nix-crypto
-            cabalHeadOverlay
           ];
           inherit system;
           inherit (inputs.haskellNix) config;
@@ -83,7 +71,7 @@
 
           # we also want cross compilation to windows on linux (and only with default compiler).
           crossPlatforms = p:
-            lib.optional (system == "x86_64-linux" && config.compiler-nix-name == mingwCompiler)
+            lib.optional (system == "x86_64-linux" && config.compiler-nix-name == crossCompilerVersion)
             p.mingwW64;
 
           # CHaP input map, so we can find CHaP packages (needs to be more
@@ -104,20 +92,19 @@
           # tools we want in our shell, from hackage
           shell.tools =
             {
-              # for now we're using latest cabal for `cabal haddock-project` fixes
-              # cabal = "3.10.3.0";
-              ghcid = "0.8.8";
+              cabal = "3.14.1.1";
             }
             // lib.optionalAttrs (config.compiler-nix-name == defaultCompiler) {
-              # tools that work or should be used only with default compiler
+              # tools that work only with default compiler
+              ghcid = "0.8.9";
               cabal-gild = "1.3.1.2";
-              fourmolu = "0.16.2.0";
-              haskell-language-server.src = nixpkgs.haskell-nix.sources."hls-2.8";
+              fourmolu = "0.17.0.0";
+              haskell-language-server.src = nixpkgs.haskell-nix.sources."hls-2.9";
               hlint = "3.8";
               stylish-haskell = "0.14.6.0";
             };
           # and from nixpkgs or other inputs
-          shell.nativeBuildInputs = with nixpkgs; [gh jq yq-go actionlint shellcheck cabal-head];
+          shell.nativeBuildInputs = with nixpkgs; [gh jq yq-go actionlint shellcheck];
           # disable Hoogle until someone request it
           shell.withHoogle = false;
           # Skip cross compilers for the shell
@@ -152,7 +139,7 @@
         flake = cabalProject.flake (
           lib.optionalAttrs (system == "x86_64-linux") {
             # on linux, build/test other supported compilers
-            variants = lib.genAttrs ["ghc8107" mingwCompiler] (compiler-nix-name: {
+            variants = lib.genAttrs ["ghc8107" crossCompilerVersion] (compiler-nix-name: {
               inherit compiler-nix-name;
             });
           }
@@ -170,8 +157,7 @@
                   # This ensure hydra send a status for the required job (even if no change other than commit hash)
                   revision = nixpkgs.writeText "revision" (inputs.self.rev or "dirty");
                 };
-            }
-            // {haddockShell = devShells.haddockShell;};
+            };
           legacyPackages = {
             inherit cabalProject nixpkgs;
             # also provide hydraJobs through legacyPackages to allow building without system prefix:
@@ -183,14 +169,7 @@
               profiling = (p.appendModule {modules = [{enableLibraryProfiling = true;}];}).shell;
             };
           in
-            profilingShell cabalProject
-            # Add GHC 9.6 shell for haddocks
-            // {
-              haddockShell = let
-                p = cabalProject.appendModule {compiler-nix-name = haddockShellCompiler;};
-              in
-                p.shell // (profilingShell p);
-            };
+            profilingShell cabalProject;
           # formatter used by nix fmt
           formatter = nixpkgs.alejandra;
         }