diff --git a/.github/workflows/c2v_ci.yml b/.github/workflows/c2v_ci.yml
index 21801e5b92c23d..56a0d609f5611c 100644
--- a/.github/workflows/c2v_ci.yml
+++ b/.github/workflows/c2v_ci.yml
@@ -9,6 +9,8 @@ on:
       - 'doc/**'
       - 'examples/**'
       - 'tutorials/**'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
       - '**.md'
@@ -17,6 +19,8 @@ on:
       - 'doc/**'
       - 'examples/**'
       - 'tutorials/**'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/cross_ci.yml b/.github/workflows/cross_ci.yml
index 5b2f64f117eeb9..e5f6647cd132ff 100644
--- a/.github/workflows/cross_ci.yml
+++ b/.github/workflows/cross_ci.yml
@@ -3,14 +3,18 @@ name: Cross CI
 on:
   push:
     paths-ignore:
-      - "**.md"
+      - '**.md'
       - '**.yml'
       - '!**/cross_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
-      - "**.md"
+      - '**.md'
       - '**.yml'
       - '!**/cross_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/docker_alpine.yml b/.github/workflows/docker_alpine.yml
index 9ca02779dcd3de..f7359cac3416e7 100644
--- a/.github/workflows/docker_alpine.yml
+++ b/.github/workflows/docker_alpine.yml
@@ -3,14 +3,18 @@ name: Docker Alpine MUSL CI
 on:
   push:
     paths-ignore:
-      - "**.md"
-      - "**.yml"
+      - '**.md'
+      - '**.yml'
       - '!**/docker_alpine.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
-      - "**.md"
-      - "**.yml"
+      - '**.md'
+      - '**.yml'
       - '!**/docker_alpine.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/docker_ubuntu.yml b/.github/workflows/docker_ubuntu.yml
index a9ecaa308eba30..fbf89dc96671f8 100644
--- a/.github/workflows/docker_ubuntu.yml
+++ b/.github/workflows/docker_ubuntu.yml
@@ -3,14 +3,18 @@ name: Docker Ubuntu MUSL CI
 on:
   push:
     paths-ignore:
-      - "**.md"
-      - "**.yml"
-      - "!**/docker_ubuntu.yml"
+      - '**.md'
+      - '**.yml'
+      - '!**/docker_ubuntu.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
-      - "**.md"
-      - "**.yml"
-      - "!**/docker_ubuntu.yml"
+      - '**.md'
+      - '**.yml'
+      - '!**/docker_ubuntu.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
@@ -46,4 +50,4 @@ jobs:
         run: ./v test-cleancode
 
       - name: Test V fixed tests
-        run: ./v test-self
+        run: ./v test-self vlib
diff --git a/.github/workflows/gen_vc_ci.yml b/.github/workflows/gen_vc_ci.yml
index a15063491d7eb0..43026c1976fcb1 100644
--- a/.github/workflows/gen_vc_ci.yml
+++ b/.github/workflows/gen_vc_ci.yml
@@ -5,16 +5,20 @@ on:
     paths-ignore:
       - '**.vv'
       - '**.out'
-      - '**.yml'
       - '**.md'
+      - '**.yml'
       - '!**/gen_vc_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
   push:
     paths-ignore:
       - '**.vv'
       - '**.out'
-      - '**.yml'
       - '**.md'
+      - '**.yml'
       - '!**/gen_vc_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
 
 # Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
 # However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
diff --git a/.github/workflows/gg_regressions_ci.yml b/.github/workflows/gg_regressions_ci.yml
index 04ed2ecdbd2d84..e992818e95a10b 100644
--- a/.github/workflows/gg_regressions_ci.yml
+++ b/.github/workflows/gg_regressions_ci.yml
@@ -2,15 +2,19 @@ name: Graphics CI
 
 on:
   push:
-    paths-ignore:
-      - "**.md"
-      - '**.yml'
-      - '!**/gg_regressions_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'thirdparty/**'
+      - 'cmd/tools/builders/**.v'
+      - '**/gg_regressions_ci.yml'
+      - '!**.md'
   pull_request:
-    paths-ignore:
-      - "**.md"
-      - '**.yml'
-      - '!**/gg_regressions_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'thirdparty/**'
+      - 'cmd/tools/builders/**.v'
+      - '**/gg_regressions_ci.yml'
+      - '!**.md'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/linux_ci.yml b/.github/workflows/linux_ci.yml
index ecd139df19861a..fd1180d63bdbde 100644
--- a/.github/workflows/linux_ci.yml
+++ b/.github/workflows/linux_ci.yml
@@ -6,17 +6,16 @@ on:
       - '**.md'
       - '**.yml'
       - '!**/linux_ci.yml'
-      - 'cmd/tools'
+      - 'cmd/tools/**'
       - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
       - '**.md'
       - '**.yml'
       - '!**/linux_ci.yml'
-      - 'cmd/tools'
+      - 'cmd/tools/**'
       - '!cmd/tools/builders/**.v'
 
-
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/macos_ci.yml b/.github/workflows/macos_ci.yml
index 927644be54158f..e7bdfd17deaff4 100644
--- a/.github/workflows/macos_ci.yml
+++ b/.github/workflows/macos_ci.yml
@@ -6,14 +6,14 @@ on:
       - '**.md'
       - '**.yml'
       - '!**/macos_ci.yml'
-      - 'cmd/tools'
+      - 'cmd/tools/**'
       - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
       - '**.md'
       - '**.yml'
       - '!**/macos_ci.yml'
-      - 'cmd/tools'
+      - 'cmd/tools/**'
       - '!cmd/tools/builders/**.v'
 
 concurrency:
diff --git a/.github/workflows/module_docs_ci.yml b/.github/workflows/module_docs_ci.yml
index b2261827ac7702..9f29772d6d6dee 100644
--- a/.github/workflows/module_docs_ci.yml
+++ b/.github/workflows/module_docs_ci.yml
@@ -2,19 +2,15 @@ name: vlib modules CI
 
 on:
   pull_request:
-    paths-ignore:
-      - '**.vv'
-      - '**.out'
-      - '**.yml'
-      - '**.md'
-      - '!**/module_docs_ci.yml'
+    paths:
+      - 'vlib/**.v'
+      - 'vlib/**.md'
+      - '**/module_docs_ci.yml'
   push:
-    paths-ignore:
-      - '**.vv'
-      - '**.out'
-      - '**.yml'
-      - '**.md'
-      - '!**/module_docs_ci.yml'
+    paths:
+      - 'vlib/**.v'
+      - 'vlib/**.md'
+      - '**/module_docs_ci.yml'
 
 # Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
 # However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
diff --git a/.github/workflows/other_ci.yml b/.github/workflows/other_ci.yml
index fa4c85e3827a57..10aaf24eecb4ed 100644
--- a/.github/workflows/other_ci.yml
+++ b/.github/workflows/other_ci.yml
@@ -6,11 +6,15 @@ on:
       - '**.md'
       - '**.yml'
       - '!**/other_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
       - '**.md'
       - '**.yml'
       - '!**/other_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/sdl_ci.yml b/.github/workflows/sdl_ci.yml
index 8ef0b25b627976..3c631ceaac8256 100644
--- a/.github/workflows/sdl_ci.yml
+++ b/.github/workflows/sdl_ci.yml
@@ -3,15 +3,21 @@ name: sdl CI
 on:
   workflow_dispatch:
   push:
-    paths-ignore:
-      - "**.md"
-      - "**.yml"
-      - '!**/sdl_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'thirdparty/**'
+      - 'cmd/tools/builders/**.v'
+      - 'cmd/tools/vshader.v'
+      - '**/sdl_ci.yml'
+      - '!**.md'
   pull_request:
-    paths-ignore:
-      - "**.md"
-      - "**.yml"
-      - '!**/sdl_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'thirdparty/**'
+      - 'cmd/tools/builders/**.v'
+      - 'cmd/tools/vshader.v'
+      - '**/sdl_ci.yml'
+      - '!**.md'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/time_ci.yml b/.github/workflows/time_ci.yml
index dd7335e9d0678d..86c24604be739e 100644
--- a/.github/workflows/time_ci.yml
+++ b/.github/workflows/time_ci.yml
@@ -2,15 +2,17 @@ name: Time CI
 
 on:
   push:
-    paths-ignore:
-      - '**.md'
-      - '**.yml'
-      - '!**/time_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'cmd/tools/builders/**.v'
+      - '**/time_ci.yml'
+      - '!**.md'
   pull_request:
-    paths-ignore:
-      - '**.md'
-      - '**.yml'
-      - '!**/time_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'cmd/tools/builders/**.v'
+      - '**/time_ci.yml'
+      - '!**.md'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/toml_ci.yml b/.github/workflows/toml_ci.yml
index 83d53b30486c88..e28bda95b88855 100644
--- a/.github/workflows/toml_ci.yml
+++ b/.github/workflows/toml_ci.yml
@@ -2,15 +2,15 @@ name: toml CI
 
 on:
   push:
-    paths-ignore:
-      - "**.md"
-      - '**.yml'
-      - '!**/toml_ci.yml'
+    paths:
+      - 'vlib/**'
+      - '**/toml_ci.yml'
+      - '!**.md'
   pull_request:
-    paths-ignore:
-      - "**.md"
-      - '**.yml'
-      - '!**/toml_ci.yml'
+    paths:
+      - 'vlib/**'
+      - '**/toml_ci.yml'
+      - '!**.md'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/tools_ci.yml b/.github/workflows/tools_ci.yml
index 5530d3a432f576..f07d454b757ed5 100644
--- a/.github/workflows/tools_ci.yml
+++ b/.github/workflows/tools_ci.yml
@@ -92,3 +92,28 @@ jobs:
       - name: Test (-cstrict)
         if: ${{ matrix.cc == 'msvc' }}
         run: ./v -W -cstrict test-self cmd
+
+  ubuntu-docker-musl:
+    runs-on: ubuntu-20.04
+    timeout-minutes: 121
+    container:
+      image: thevlang/vlang:ubuntu-build
+      env:
+        V_CI_MUSL: 1
+        V_CI_UBUNTU_MUSL: 1
+        VFLAGS: -cc musl-gcc -gc none
+      volumes:
+        - ${{github.workspace}}:/opt/vlang
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build V
+        run: make -j4 && ./v -cg -o v cmd/v
+      - name: Verify `v test` works
+        run: |
+          ./v cmd/tools/test_if_v_test_system_works.v
+          ./cmd/tools/test_if_v_test_system_works
+      - name: Test
+        run: ./v test-self cmd
+      - name: Test (-cstrict)
+        run: ./v -W -cstrict test-self cmd
diff --git a/.github/workflows/vab_ci.yml b/.github/workflows/vab_ci.yml
index 50d9f2205ddf65..6397d306e6a7b9 100644
--- a/.github/workflows/vab_ci.yml
+++ b/.github/workflows/vab_ci.yml
@@ -3,15 +3,19 @@ name: vab CI
 on:
   workflow_call:
   push:
-    paths-ignore:
-      - "**.md"
-      - '**.yml'
-      - '!**/vab_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'thirdparty/**'
+      - 'cmd/tools/builders/**.v'
+      - '**/vab_ci.yml'
+      - '!**.md'
   pull_request:
-    paths-ignore:
-      - "**.md"
-      - '**.yml'
-      - '!**/vab_ci.yml'
+    paths:
+      - 'vlib/**'
+      - 'thirdparty/**'
+      - 'cmd/tools/builders/**.v'
+      - '**/vab_ci.yml'
+      - '!**.md'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
diff --git a/.github/workflows/websockets_ci.yml b/.github/workflows/websockets_ci.yml
index abf47f4743828e..c1a683af7b2349 100644
--- a/.github/workflows/websockets_ci.yml
+++ b/.github/workflows/websockets_ci.yml
@@ -3,14 +3,18 @@ name: Websockets CI
 on:
   push:
     paths-ignore:
-      - "**.md"
+      - '**.md'
       - '**.yml'
       - '!**/websockets_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
-      - "**.md"
+      - '**.md'
       - '**.yml'
       - '!**/websockets_ci.yml'
+      - 'cmd/tools/**'
+      - '!cmd/tools/builders/**.v'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
@@ -37,7 +41,7 @@ jobs:
       - name: Run websockets tests
         run: ./v -g test vlib/net/websocket/
 
-  ## Autobahn integrations tests
+      ## Autobahn integrations tests
       - name: Run autobahn services
         run: docker-compose -f ${{github.workspace}}/vlib/net/websocket/tests/autobahn/docker-compose.yml up -d
 
@@ -95,4 +99,3 @@ jobs:
         with:
           name: client wss
           path: ${{github.workspace}}/reports_wss/clients/index.html
-
diff --git a/.github/workflows/windows_ci.yml b/.github/workflows/windows_ci.yml
index 22662edfa1b0bf..ac2088f4d2d1c2 100644
--- a/.github/workflows/windows_ci.yml
+++ b/.github/workflows/windows_ci.yml
@@ -6,14 +6,14 @@ on:
       - '**.md'
       - '**.yml'
       - '!**/windows_ci.yml'
-      - 'cmd/tools'
+      - 'cmd/tools/**'
       - '!cmd/tools/builders/**.v'
   pull_request:
     paths-ignore:
       - '**.md'
       - '**.yml'
       - '!**/windows_ci.yml'
-      - 'cmd/tools'
+      - 'cmd/tools/**'
       - '!cmd/tools/builders/**.v'
 
 concurrency: