diff --git a/.github/workflows/macos-linux-conda.yml b/.github/workflows/macos-linux-conda.yml
index 0f158024bf..b14fa92fdd 100644
--- a/.github/workflows/macos-linux-conda.yml
+++ b/.github/workflows/macos-linux-conda.yml
@@ -1,6 +1,8 @@
 name: CI - OSX/Linux via Conda
 
 on:
+  schedule:
+    - cron: '0 0 * * 1'
   push:
     paths-ignore:
       - doc/**
@@ -51,8 +53,19 @@ jobs:
             BUILD_ADVANCED_TESTING: OFF
 
     steps:
+      # extract branch name or checkout devel branch for scheduled events
+      - name: Get branch name or checkout devel
+        run: |
+          if [ "${{ github.event_name }}" == "schedule" ]; then
+            echo "BRANCH_NAME=devel" >> $GITHUB_ENV
+            echo "LABELS=build_all" >> $GITHUB_ENV
+          else
+            echo "BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/})" >> $GITHUB_ENV
+          fi
+
       - uses: actions/checkout@v4
         with:
+          ref: ${{ env.BRANCH_NAME }}
           submodules: recursive
 
       - uses: actions/cache@v4
@@ -74,9 +87,12 @@ jobs:
         if: (contains(matrix.os, 'macos') || contains(matrix.os, 'ubuntu')) && contains(matrix.build_type, 'Debug')
         run: |
           echo "CMAKE_TOOLCHAIN_FILE=${GITHUB_WORKSPACE}/.github/workflows/cmake/linux-debug-toolchain.cmake" >> "$GITHUB_ENV"
+
       - name: Get Compilation Flags
         id: get_labels
         uses: actions/github-script@v7
+        env:
+          LABELS: ${{ env.LABELS }}
         with:
           script: |
             const script = require('./.github/workflows/scripts/get_compilation_flags.js');
diff --git a/.github/workflows/scripts/get_compilation_flags.js b/.github/workflows/scripts/get_compilation_flags.js
index 2eb0f044e4..75e46d9b68 100644
--- a/.github/workflows/scripts/get_compilation_flags.js
+++ b/.github/workflows/scripts/get_compilation_flags.js
@@ -10,21 +10,8 @@ module.exports = async ({github, context, core}) => {
     const prNumber = context.issue.number || getPullRequestNumber(context.ref);
 
     let cmakeFlags = '';
-    if(isNaN(prNumber))
-    {
-        core.setOutput("cmakeFlags", cmakeFlags);
-        return;
-    }
-
-    const { data } = await github.rest.pulls.get({
-        owner: context.repo.owner,
-        repo: context.repo.repo,
-        pull_number: prNumber,
-    });
-    const labelNames = data.labels.map(label => label.name);
-
+    // get os process is run on
     const os = process.env.RUNNER_OS;
-
     var labelFlags;
     if(os == "Windows")
     {
@@ -77,6 +64,29 @@ module.exports = async ({github, context, core}) => {
         };
     }
 
+    // Get the GitHub event name that triggered the workflow
+    const {LABELS} = process.env;
+    var labelNames;
+    if(LABELS)
+    {
+        labelNames=[LABELS];
+    }
+    else
+    {
+        if(isNaN(prNumber))
+        {
+            core.setOutput("cmakeFlags", cmakeFlags);
+            return;
+        }
+
+        const { data } = await github.rest.pulls.get({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            pull_number: prNumber,
+        });
+        labelNames = data.labels.map(label => label.name);
+    }
+
     labelNames.forEach(label => {
         if (labelFlags[label]) {
             if (Array.isArray(labelFlags[label])) {
diff --git a/.github/workflows/windows-conda.yml b/.github/workflows/windows-conda.yml
index 46c2c98855..85469f9306 100644
--- a/.github/workflows/windows-conda.yml
+++ b/.github/workflows/windows-conda.yml
@@ -1,5 +1,7 @@
 name: CI - Windows via Conda
 on:
+  schedule:
+    - cron: '0 0 * * 1'
   push:
     paths-ignore:
       - doc/**
@@ -41,8 +43,21 @@ jobs:
         compiler: [cl, clang-cl]
 
     steps:
+      # Extract branch name or set 'devel' branch for scheduled events
+      - name: Get branch name or checkout devel
+        shell: bash
+        run: |
+          if [ "$GITHUB_EVENT_NAME" == "schedule" ]; then
+            echo "BRANCH_NAME=devel" >> $GITHUB_ENV
+            echo "LABELS=build_all" >> $GITHUB_ENV
+          else
+            branchName=${GITHUB_REF#refs/heads/}
+            echo "BRANCH_NAME=$branchName" >> $GITHUB_ENV
+          fi
+
       - uses: actions/checkout@v4
         with:
+          ref: ${{ env.BRANCH_NAME }}
           submodules: recursive
 
       - uses: actions/cache@v4
@@ -63,6 +78,8 @@ jobs:
       - name: Get Compilation Flags
         id: get_labels
         uses: actions/github-script@v7
+        env:
+          LABELS: ${{ env.LABELS }}
         with:
           script: |
             const script = require('./.github/workflows/scripts/get_compilation_flags.js');