diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..4a3ab46
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,31 @@
+name: ci
+
+on:
+  pull_request:
+    paths:
+      - '**'
+      - '!LICENSE'
+      - '!TODO'
+      - '!doc/**'
+      - '!examples/**'
+      - '.github/workflows/ci.yml'
+  push:
+    branches:
+      - master
+
+# TODO(bnoordhuis) run test262 tests
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: build
+        run: |
+          make -j$(getconf _NPROCESSORS_ONLN) CONFIG_WERROR=y
+      - name: stats
+        run: |
+          make -j$(getconf _NPROCESSORS_ONLN) CONFIG_WERROR=y qjs
+          ./qjs -qd
+      - name: test
+        run: |
+          make -j$(getconf _NPROCESSORS_ONLN) CONFIG_WERROR=y test
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bbf01f5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+examples/point.so
+.obj/
+qjs
+qjs32
+qjsc
+qjscalc.c
+repl.c
+tests/bjson.so
diff --git a/Makefile b/Makefile
index 49b1f6f..419a3a4 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,8 @@ endif
 # Windows cross compilation from Linux
 #CONFIG_WIN32=y
 # use link time optimization (smaller and faster executables but slower build)
-CONFIG_LTO=y
+# XXX(bnoordhuis) disabled because of slow build times
+#CONFIG_LTO=y
 # consider warnings as errors (for development)
 #CONFIG_WERROR=y
 # force 32 bit build for some utilities
diff --git a/tests/test_std.js b/tests/test_std.js
index 3ea6e34..c341a41 100644
--- a/tests/test_std.js
+++ b/tests/test_std.js
@@ -143,7 +143,8 @@ function test_os()
 {
     var fd, fpath, fname, fdir, buf, buf2, i, files, err, fdate, st, link_path;
 
-    assert(os.isatty(0));
+    // XXX(bnoordhuis) disabled because stdio is not a tty on CI
+    //assert(os.isatty(0));
 
     fdir = "test_tmp_dir";
     fname = "tmp_file.txt";