diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d1da835c0..52bdacdea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,8 +3,16 @@ name: CI
 on:
   push:
     branches: main
+    paths-ignore:
+      - '**/*.md'
+      - '**/release.yml'
+      - '**/ci-large.yml'
   pull_request:
     branches: '**'
+    paths-ignore:
+      - '**/*.md'
+      - '**/release.yml'
+      - '**/ci-large.yml'
   workflow_dispatch:
 
 defaults:
@@ -118,7 +126,8 @@ jobs:
       coverage: true
     secrets: inherit
 
-  coverage:
+  coveralls:
+    name: 'Coveralls'
     needs: unit
     runs-on: ubuntu-latest
     steps:
@@ -192,15 +201,26 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: 'Setup cache - rustup toolchain'
+        uses: actions/cache@v3
+        if: ${{ !env.ACT }}
+        with:
+          path: |
+            ~/.rustup/settings.toml
+            ~/.rustup/toolchains/*
+            ~/.rustup/update-hashes/*
+          key: rust-toolchain-${{ runner.os }}-${{ hashFiles('.github/**/*.yml', '.github/**/*.sh', 'rust-toolchain') }}
       - uses: actions-rs/toolchain@v1
         with:
           components: clippy
-      - uses: actions/cache@v3
+      - name: 'Setup cache - work/ dir'
+        uses: actions/cache@v3
         if: ${{ !env.ACT }}
         with:
           path: |
             work/downloads
-          key: lint-${{ runner.os }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain') }}
+            work/openssl
+          key: lint-${{ runner.os }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain', 'Makefile') }}
       - run: make setup
       - run: make lint
       - uses: actions-rs/clippy-check@v1
@@ -249,7 +269,7 @@ jobs:
       debug: ${{ matrix.debug }}
 
   build:
-    name: 'Test builds'
+    name: 'Build'
     #if: ${{ false }}
     runs-on: ${{ matrix.os }}
     timeout-minutes: 45
@@ -281,7 +301,7 @@ jobs:
             work/downloads
             work/runtimes
             work/openssl
-          key: work-${{ runner.os }}-${{ matrix.cc }}-${{ matrix.ngx }}-${{ matrix.openresty }}-${{ matrix.runtime }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain') }}
+          key: work-${{ runner.os }}-${{ matrix.cc }}-${{ matrix.ngx }}-${{ matrix.openresty }}-${{ matrix.runtime }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain', 'Makefile') }}
       - name: Setup Wasm runtime
         run: ./util/runtime.sh -R ${{ matrix.runtime }} -V ${{ matrix[matrix.runtime] }}
       - run: make setup
diff --git a/.github/workflows/job-unit-tests.yml b/.github/workflows/job-unit-tests.yml
index 3a4f80ed6..6048f84aa 100644
--- a/.github/workflows/job-unit-tests.yml
+++ b/.github/workflows/job-unit-tests.yml
@@ -80,7 +80,7 @@ jobs:
             ~/.rustup/settings.toml
             ~/.rustup/toolchains/*
             ~/.rustup/update-hashes/*
-          key: rust-toolchain-${{ runner.os }}-${{ hashFiles('.github/**/*.yml', '.github/**/*.sh') }}
+          key: rust-toolchain-${{ inputs.os }}-${{ hashFiles('.github/**/*.yml', '.github/**/*.sh', 'rust-toolchain') }}
       - name: 'Setup cache - work/ dir'
         uses: actions/cache@v3
         if: ${{ !env.ACT }}
@@ -89,7 +89,7 @@ jobs:
             work/downloads
             work/runtimes
             work/openssl
-          key: work-${{ runner.os }}-${{ inputs.cc }}-${{ inputs.ngx }}-${{ inputs.openresty }}-${{ inputs.runtime }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain') }}
+          key: work-${{ inputs.os }}-${{ inputs.cc }}-${{ inputs.ngx }}-${{ inputs.openresty }}-${{ inputs.runtime }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain', 'Makefile') }}
       - name: Setup Rust
         uses: actions-rs/toolchain@v1
         with:
diff --git a/.github/workflows/job-valgrind-tests.yml b/.github/workflows/job-valgrind-tests.yml
index 871009cd6..d54ab9867 100644
--- a/.github/workflows/job-valgrind-tests.yml
+++ b/.github/workflows/job-valgrind-tests.yml
@@ -68,7 +68,7 @@ jobs:
             ~/.rustup/settings.toml
             ~/.rustup/toolchains/*
             ~/.rustup/update-hashes/*
-          key: rust-toolchain-${{ runner.os }}-${{ hashFiles('.github/**/*.yml', '.github/**/*.sh') }}
+          key: rust-toolchain-${{ inputs.os }}-${{ hashFiles('.github/**/*.yml', '.github/**/*.sh', 'rust-toolchain') }}
       - name: 'Setup cache - work/ dir'
         uses: actions/cache@v3
         if: ${{ !env.ACT }}
@@ -77,7 +77,7 @@ jobs:
             work/downloads
             work/runtimes
             work/openssl
-          key: work-${{ runner.os }}-${{ inputs.cc }}-${{ inputs.ngx }}-${{ inputs.openresty }}-${{ inputs.runtime }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain') }}
+          key: work-${{ inputs.os }}-${{ inputs.cc }}-${{ inputs.ngx }}-${{ inputs.openresty }}-${{ inputs.runtime }}-${{ hashFiles('util/**/*.sh', 'util/**/*.pl', 'util/**/*.awk', '.github/**/*.yml', '.github/**/*.sh', '.github/**/*.js', 'rust-toolchain', 'Makefile') }}
       - name: Setup Rust
         uses: actions-rs/toolchain@v1
         with: