build: separate build configurations

.github/workflows/build-linux.yml

@@ -1,4 +1,4 @@
-name: Build/release
+name: Build/release [linux]
 
 on: push
 
@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest]
+        os: [ubuntu-latest]
 
     steps:
       - name: Check out Git repository

.github/workflows/build-mac.yml

@@ -0,0 +1,26 @@
+name: Build/release [mac]
+
+on: push
+
+jobs:
+  release:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [macos-latest]
+
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v1
+
+      - name: Install Node.js, NPM and Yarn
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12
+
+      - name: Build/release Electron app
+        uses: samuelmeuli/action-electron-builder@v1
+        with:
+          github_token: ${{ secrets.github_token }}
+          release: ${{ startsWith(github.ref, 'refs/tags/v') }}

.github/workflows/build-win.yml

@@ -0,0 +1,26 @@
+name: Build/release [windows]
+
+on: push
+
+jobs:
+  release:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [windows-latest]
+
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v1
+
+      - name: Install Node.js, NPM and Yarn
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12
+
+      - name: Build/release Electron app
+        uses: samuelmeuli/action-electron-builder@v1
+        with:
+          github_token: ${{ secrets.github_token }}
+          release: ${{ startsWith(github.ref, 'refs/tags/v') }}