diff --git a/.gitea/workflows/Dockerfile_tests b/.gitea/workflows/Dockerfile_tests
new file mode 100644
index 0000000..ba6ae3a
--- /dev/null
+++ b/.gitea/workflows/Dockerfile_tests
@@ -0,0 +1,9 @@
+FROM golang:latest
+
+RUN apt install -y make curl python3 && go install gotest.tools/gotestsum@latest
+
+COPY . /source
+
+WORKDIR /source
+
+CMD ["make", "test"]
diff --git a/.gitea/workflows/tests.yml b/.gitea/workflows/tests.yml
new file mode 100644
index 0000000..22fabbc
--- /dev/null
+++ b/.gitea/workflows/tests.yml
@@ -0,0 +1,30 @@
+
+# https://docs.gitea.com/next/usage/actions/quickstart
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
+# https://docs.github.com/en/actions/learn-github-actions/contexts#github-context
+
+name: Build Docker and Deploy
+run-name: Build & Deploy ${{ gitea.ref }} on ${{ gitea.actor }}
+
+on: [push]
+
+jobs:
+  run_tests:
+    name: Run goext test-suite
+    runs-on: bfb-cicd-latest
+    steps:
+
+      - name: Check out code
+        uses: actions/checkout@v3
+
+      - name: Build test docker
+        id: build_docker
+        run: echo "DOCKER_IMG_ID=$(docker build -q . -f .gitea/workflows/Dockerfile_tests || echo __err_build__)" >> $GITHUB_OUTPUT
+
+      - name: Run tests
+        run: docker run --rm "${{ steps.build_docker.outputs.DOCKER_IMG_ID }}"
+
+      - name: Cleanup
+        if: always()
+        run: docker image rm "${{ steps.build_docker.outputs.DOCKER_IMG_ID }}"
+
diff --git a/bfcodegen/_test_example.tgz b/bfcodegen/_test_example.tgz
new file mode 100644
index 0000000..500f74a
Binary files /dev/null and b/bfcodegen/_test_example.tgz differ
diff --git a/bfcodegen/enum-generate_test.go b/bfcodegen/enum-generate_test.go
index 94adb76..e92ae4c 100644
--- a/bfcodegen/enum-generate_test.go
+++ b/bfcodegen/enum-generate_test.go
@@ -1,15 +1,42 @@
 package bfcodegen
 
 import (
+	_ "embed"
+	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"os"
+	"path/filepath"
 	"testing"
+	"time"
 )
 
-func TestApplyEnvOverridesSimple(t *testing.T) {
+//go:embed _test_example.tgz
+var ExampleModels []byte
 
-	err := GenerateEnumSpecs("/home/mike/Code/reiff/badennet/bnet-backend/models", "/home/mike/Code/reiff/badennet/bnet-backend/models/enums_gen.go")
-	if err != nil {
-		t.Error(err)
-		t.Fail()
-	}
+func TestGenerateEnumSpecs(t *testing.T) {
+
+	tmpFile := filepath.Join(t.TempDir(), langext.MustHexUUID()+".tgz")
+
+	tmpDir := filepath.Join(t.TempDir(), langext.MustHexUUID())
+
+	err := os.WriteFile(tmpFile, ExampleModels, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.Remove(tmpFile) })
+
+	err = os.Mkdir(tmpDir, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.RemoveAll(tmpFile) })
+
+	_, err = cmdext.Runner("tar").Arg("-xvzf").Arg(tmpFile).Arg("-C").Arg(tmpDir).FailOnExitCode().FailOnTimeout().Timeout(time.Minute).Run()
+	tst.AssertNoErr(t, err)
+
+	err = GenerateEnumSpecs(tmpDir, tmpDir+"/enums_gen.go")
+	tst.AssertNoErr(t, err)
+
+	err = GenerateEnumSpecs(tmpDir, tmpDir+"/enums_gen.go")
+	tst.AssertNoErr(t, err)
 
 }
diff --git a/cmdext/cmdrunner_test.go b/cmdext/cmdrunner_test.go
index d83351a..90e2bdc 100644
--- a/cmdext/cmdrunner_test.go
+++ b/cmdext/cmdrunner_test.go
@@ -33,7 +33,7 @@ func TestStdout(t *testing.T) {
 
 func TestStderr(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").Run()
 	if err != nil {
 		t.Errorf("%v", err)
 	}
@@ -56,7 +56,7 @@ func TestStderr(t *testing.T) {
 }
 
 func TestStdcombined(t *testing.T) {
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"1\", file=sys.stderr, flush=True); time.sleep(0.1); print(\"2\", file=sys.stdout, flush=True); time.sleep(0.1); print(\"3\", file=sys.stderr, flush=True)").
 		Run()
@@ -82,7 +82,7 @@ func TestStdcombined(t *testing.T) {
 }
 
 func TestPartialRead(t *testing.T) {
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", flush=True); time.sleep(5); print(\"cant see me\", flush=True);").
 		Timeout(100 * time.Millisecond).
@@ -106,7 +106,7 @@ func TestPartialRead(t *testing.T) {
 }
 
 func TestPartialReadStderr(t *testing.T) {
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", file=sys.stderr, flush=True); time.sleep(5); print(\"cant see me\", file=sys.stderr, flush=True);").
 		Timeout(100 * time.Millisecond).
@@ -131,7 +131,7 @@ func TestPartialReadStderr(t *testing.T) {
 
 func TestReadUnflushedStdout(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stdout, end='')").Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stdout, end='')").Run()
 	if err != nil {
 		t.Errorf("%v", err)
 	}
@@ -155,7 +155,7 @@ func TestReadUnflushedStdout(t *testing.T) {
 
 func TestReadUnflushedStderr(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stderr, end='')").Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stderr, end='')").Run()
 	if err != nil {
 		t.Errorf("%v", err)
 	}
@@ -180,7 +180,7 @@ func TestReadUnflushedStderr(t *testing.T) {
 func TestPartialReadUnflushed(t *testing.T) {
 	t.SkipNow()
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", end=''); time.sleep(5); print(\"cant see me\", end='');").
 		Timeout(100 * time.Millisecond).
@@ -206,7 +206,7 @@ func TestPartialReadUnflushed(t *testing.T) {
 func TestPartialReadUnflushedStderr(t *testing.T) {
 	t.SkipNow()
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", file=sys.stderr, end=''); time.sleep(5); print(\"cant see me\", file=sys.stderr, end='');").
 		Timeout(100 * time.Millisecond).
@@ -231,7 +231,7 @@ func TestPartialReadUnflushedStderr(t *testing.T) {
 
 func TestListener(t *testing.T) {
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys;" +
 			"import time;" +
@@ -264,7 +264,7 @@ func TestListener(t *testing.T) {
 
 func TestLongStdout(t *testing.T) {
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"X\" * 125001 + \"\\n\"); print(\"Y\" * 125001 + \"\\n\"); print(\"Z\" * 125001 + \"\\n\");").
 		Timeout(5000 * time.Millisecond).
@@ -298,7 +298,7 @@ func TestFailOnTimeout(t *testing.T) {
 
 func TestFailOnStderr(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").FailOnStderr().Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").FailOnStderr().Run()
 	if err == nil {
 		t.Errorf("no err")
 	}
diff --git a/rfctime/rfc3339.go b/rfctime/rfc3339.go
index 3a8190e..83dfcaf 100644
--- a/rfctime/rfc3339.go
+++ b/rfctime/rfc3339.go
@@ -69,7 +69,7 @@ func (t *RFC3339Time) UnmarshalText(data []byte) error {
 }
 
 func (t *RFC3339Time) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
-	if bt == bsontype.Null {
+	if bt == bson.TypeNull {
 		// we can't set nil in UnmarshalBSONValue (so we use default(struct))
 		// Use mongoext.CreateGoExtBsonRegistry if you need to unmarsh pointer values
 		// https://stackoverflow.com/questions/75167597
@@ -77,7 +77,7 @@ func (t *RFC3339Time) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
 		*t = RFC3339Time{}
 		return nil
 	}
-	if bt != bsontype.DateTime {
+	if bt != bson.TypeDateTime {
 		return errors.New(fmt.Sprintf("cannot unmarshal %v into RFC3339Time", bt))
 	}
 	var tt time.Time
diff --git a/rfctime/rfc3339Nano.go b/rfctime/rfc3339Nano.go
index f0a4d90..76bbbb6 100644
--- a/rfctime/rfc3339Nano.go
+++ b/rfctime/rfc3339Nano.go
@@ -69,7 +69,7 @@ func (t *RFC3339NanoTime) UnmarshalText(data []byte) error {
 }
 
 func (t *RFC3339NanoTime) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
-	if bt == bsontype.Null {
+	if bt == bson.TypeNull {
 		// we can't set nil in UnmarshalBSONValue (so we use default(struct))
 		// Use mongoext.CreateGoExtBsonRegistry if you need to unmarsh pointer values
 		// https://stackoverflow.com/questions/75167597
@@ -77,7 +77,7 @@ func (t *RFC3339NanoTime) UnmarshalBSONValue(bt bsontype.Type, data []byte) erro
 		*t = RFC3339NanoTime{}
 		return nil
 	}
-	if bt != bsontype.DateTime {
+	if bt != bson.TypeDateTime {
 		return errors.New(fmt.Sprintf("cannot unmarshal %v into RFC3339NanoTime", bt))
 	}
 	var tt time.Time
diff --git a/rfctime/rfc3339Nano_test.go b/rfctime/rfc3339Nano_test.go
index 19cd474..b63e154 100644
--- a/rfctime/rfc3339Nano_test.go
+++ b/rfctime/rfc3339Nano_test.go
@@ -2,6 +2,7 @@ package rfctime
 
 import (
 	"encoding/json"
+	"gogs.mikescher.com/BlackForestBytes/goext/timeext"
 	"gogs.mikescher.com/BlackForestBytes/goext/tst"
 	"testing"
 	"time"
@@ -13,7 +14,7 @@ func TestRoundtrip(t *testing.T) {
 		Value RFC3339NanoTime `json:"v"`
 	}
 
-	val1 := NewRFC3339Nano(time.Unix(0, 1675951556820915171))
+	val1 := NewRFC3339Nano(time.Unix(0, 1675951556820915171).In(timeext.TimezoneBerlin))
 	w1 := Wrap{val1}
 
 	jstr1, err := json.Marshal(w1)