diff --git a/.github/workflows/ci-cachix.yml b/.github/workflows/ci-cachix.yml
index 817a7251..f197e7c4 100644
--- a/.github/workflows/ci-cachix.yml
+++ b/.github/workflows/ci-cachix.yml
@@ -1,38 +1,48 @@
 name: Nix build
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - master
+      - develop
+  pull_request:
+    branches:
+      - master
+      - develop
+      - reducer-dev
+      - epic-reducer-project
 
 jobs:
   flake:
     runs-on: ubuntu-latest
 
     steps:
-    - name: Checkout code
-      uses: actions/checkout@v3
-    - name: Install nix
-      uses: cachix/install-nix-action@v17
-      with:
-        nix_path: nixpkgs=channel:nixos-22.05
-    - name: Use cachix
-      uses: cachix/cachix-action@v10
-      with:
-        name: quantified-uncertainty
-        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Install nix
+        uses: cachix/install-nix-action@v17
+        with:
+          nix_path: nixpkgs=channel:nixos-22.05
+      - name: Use cachix
+        uses: cachix/cachix-action@v10
+        with:
+          name: quantified-uncertainty
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
 
-    - name: Check that lang lints
-      run: nix build .#lang-lint
-    - name: Check that components lints
-      run: nix build .#components-lint
-    - name: Check that website lints
-      run: nix build .#docusaurus-lint
-    - name: Check that vscode extension lints
-      run: nix build .#vscode-lint
+      - name: Check that lang lints
+        run: nix build .#lang-lint
+      - name: Check that components lints
+        run: nix build .#components-lint
+      - name: Check that website lints
+        run: nix build .#docusaurus-lint
+      - name: Check that vscode extension lints
+        run: nix build .#vscode-lint
 
-    - name: Check all lang tests
-      run: nix build .#lang-test
-    - name: Check that lang bundles
-      run: nix build .#lang-bundle
-    - name: Check that components builds
-      run: nix build .#components
-    - name: Check that components bundles
-      run: nix build .#components-bundle
+      - name: Check all lang tests
+        run: nix build .#lang-test
+      - name: Check that lang bundles
+        run: nix build .#lang-bundle
+      - name: Check that components builds
+        run: nix build .#components
+      - name: Check that components bundles
+        run: nix build .#components-bundle
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6020a508..0a649ec7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,6 +10,7 @@ on:
       - master
       - develop
       - reducer-dev
+      - epic-reducer-project
 
 jobs:
   pre_check:
diff --git a/nix/README.md b/nix/README.md
index cadf6b82..6ad6a456 100644
--- a/nix/README.md
+++ b/nix/README.md
@@ -1 +1 @@
-Visit `quantified-uncertainty.cachix.org` for information about how to add our binary cache to your local dev environment. 
+Visit `quantified-uncertainty.cachix.org` for information about how to add our binary cache to your local dev environment.