diff --git a/.gitea/workflows/workflow.yml b/.gitea/workflows/workflow.yml
new file mode 100644
index 0000000..e69de29
diff --git a/examples_py/test_aps.ipynb b/examples_py/test_aps.ipynb
new file mode 100644
index 0000000..b8a636b
--- /dev/null
+++ b/examples_py/test_aps.ipynb
@@ -0,0 +1,146 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "6763c6d0-878f-4492-840e-40d11a52f91e",
+   "metadata": {},
+   "source": [
+    "# Test Welch method implementation Python wrappers"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "6c06a0c3-dcf7-4d21-b1f3-eced84e31218",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "🍹 Building a mixed python/rust project\n",
+      "🔗 Found pyo3 bindings\n",
+      "🐍 Found CPython 3.10 at /home/anne/.pyenv/versions/lasprs/bin/python\n",
+      "Requirement already satisfied: numpy in /home/anne/.pyenv/versions/lasprs/lib/python3.10/site-packages (1.26.4)\n",
+      "\u001b[1m\u001b[32m   Compiling\u001b[0m pyo3-build-config v0.21.2\n",
+      "\u001b[K\u001b[1m\u001b[32m   Compiling\u001b[0m pyo3-macros-backend v0.21.2 178/189: pyo3-build-config           \n",
+      "\u001b[K\u001b[1m\u001b[32m   Compiling\u001b[0m pyo3-ffi v0.21.2=======>  ] 178/189: pyo3-macros-backend, pyo3...\n",
+      "\u001b[1m\u001b[32m   Compiling\u001b[0m pyo3 v0.21.2\n",
+      "\u001b[K\u001b[1m\u001b[32m   Compiling\u001b[0m pyo3-macros v0.21.2=====> ] 183/189: pyo3-macros-backend, pyo3...\n",
+      "\u001b[K\u001b[1m\u001b[32m   Compiling\u001b[0m numpy v0.21.0===========> ] 186/189: pyo3                        \n",
+      "\u001b[K\u001b[1m\u001b[32m   Compiling\u001b[0m lasprs v0.6.1 (/home/anne/wip/mycode/lasprs)                     \n",
+      "\u001b[K\u001b[0m\u001b[1m\u001b[33mwarning\u001b[0m\u001b[0m\u001b[1m: type alias `Vc` is never used\u001b[0m                     \n",
+      "\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m--> \u001b[0m\u001b[0msrc/config.rs:63:10\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m63\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0mpub type Vc = Vec<Cflt>;\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m          \u001b[0m\u001b[0m\u001b[1m\u001b[33m^^\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m= \u001b[0m\u001b[0m\u001b[1mnote\u001b[0m\u001b[0m: `#[warn(dead_code)]` on by default\u001b[0m\n",
+      "\n",
+      "\u001b[K\u001b[0m\u001b[1m\u001b[33mwarning\u001b[0m\u001b[0m\u001b[1m: type alias `Cmat` is never used\u001b[0m                   \n",
+      "\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m--> \u001b[0m\u001b[0msrc/config.rs:75:10\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m75\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0mpub type Cmat = Array2<Cflt>;\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m          \u001b[0m\u001b[0m\u001b[1m\u001b[33m^^^^\u001b[0m\n",
+      "\n",
+      "\u001b[0m\u001b[1m\u001b[33mwarning\u001b[0m\u001b[0m\u001b[1m: methods `ninchannels` and `noutchannels` are never used\u001b[0m\n",
+      "\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m--> \u001b[0m\u001b[0msrc/daq/api/mod.rs:25:8\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m20\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0mpub trait Stream {\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m           \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m------\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12mmethods in this trait\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m...\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m25\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    fn ninchannels(&self) -> usize;\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m        \u001b[0m\u001b[0m\u001b[1m\u001b[33m^^^^^^^^^^^\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m...\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m28\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    fn noutchannels(&self) -> usize;\u001b[0m\n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m        \u001b[0m\u001b[0m\u001b[1m\u001b[33m^^^^^^^^^^^^\u001b[0m\n",
+      "\n",
+      "\u001b[K\u001b[0m\u001b[1m\u001b[33mwarning\u001b[0m\u001b[0m\u001b[1m: method `setPreFilter` is never used\u001b[0m               \n",
+      "\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m--> \u001b[0m\u001b[0msrc/siggen.rs:320:12\u001b[0m\n",
+      "\u001b[0m    \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m318\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0mimpl SiggenChannelConfig {\u001b[0m\n",
+      "\u001b[0m    \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m------------------------\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12mmethod in this implementation\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m319\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    /// Set new pre-filter that filters the source signal\u001b[0m\n",
+      "\u001b[0m\u001b[1m\u001b[38;5;12m320\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    pub fn setPreFilter(&mut self, pref: Option<Box<dyn Filter>>) {\u001b[0m\n",
+      "\u001b[0m    \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m            \u001b[0m\u001b[0m\u001b[1m\u001b[33m^^^^^^^^^^^^\u001b[0m\n",
+      "\n",
+      "\u001b[K\u001b[1m\u001b[33mwarning\u001b[0m\u001b[1m:\u001b[0m `lasprs` (lib) generated 4 warningssprs                      \n",
+      "\u001b[1m\u001b[32m    Finished\u001b[0m \u001b]8;;https://doc.rust-lang.org/cargo/reference/profiles.html#default-profiles\u001b\\`dev` profile [unoptimized + debuginfo]\u001b]8;;\u001b\\ target(s) in 6.04s\n",
+      "📦 Built wheel for CPython 3.10 to /tmp/.tmp03vGw7/lasprs-0.6.1-cp310-cp310-linux_x86_64.whl\n",
+      "✏️  Setting installed package as editable\n",
+      "🛠 Installed lasprs-0.6.1\n"
+     ]
+    }
+   ],
+   "source": [
+    "!cd .. && maturin develop -F python-bindings"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "3e651371-e7a5-4013-a265-ab80f8b1eb41",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from lasprs import WindowType"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "9d6bdf3b-40f8-4c3b-85ac-4ff8b8c7dcae",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "w = WindowType.all()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "3a31899d-37de-4653-9b6e-61dcf7c683f4",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[WindowType.Hann,\n",
+       " WindowType.Hamming,\n",
+       " WindowType.Rect,\n",
+       " WindowType.Bartlett,\n",
+       " WindowType.Blackman]"
+      ]
+     },
+     "execution_count": 4,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "w"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.12"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/src/ps/aps.rs b/src/ps/aps.rs
index 100a58e..467d9f4 100644
--- a/src/ps/aps.rs
+++ b/src/ps/aps.rs
@@ -146,59 +146,6 @@ impl ApsSettings {
     }
 }
 
-///  Provide the overlap of blocks for computing averaged (cross) power spectra.
-///  Can be provided as a percentage of the block size, or as a number of
-///  samples.
-#[cfg_attr(feature = "python-bindings", pyclass)]
-#[derive(Clone, Debug, PartialEq)]
-pub enum Overlap {
-    /// Overlap specified as a percentage of the total FFT length. Value should
-    /// be 0<=pct<100.
-    Percentage {
-        /// Percentage
-        pct: Flt,
-    },
-    /// Number of samples to overlap
-    Number {
-        /// N: Number of samples
-        N: usize,
-    },
-    /// No overlap at all, which is the same as Overlap::Number(0)
-    NoOverlap {},
-}
-impl Default for Overlap {
-    fn default() -> Self {
-        Overlap::Percentage { pct: 50. }
-    }
-}
-
-#[cfg(feature = "python-bindings")]
-#[cfg_attr(feature = "python-bindings", pymethods)]
-impl Overlap {
-    #[inline]
-    fn __eq__(&self, other: &Self) -> bool {
-        self == other
-    }
-
-    #[staticmethod]
-    #[pyo3(name = "default")]
-    fn default_py() -> Self {
-        Self::default()
-    }
-
-    /// Export some typical settings to Python. Customs are also possible by
-    /// directly creating them. This is to fill up the list.
-    #[staticmethod]
-    fn some_settings() -> Vec<Overlap> {
-        use Overlap::*;
-        vec![
-            NoOverlap {},
-            Percentage { pct: 25. },
-            Percentage { pct: 50. },
-            Percentage { pct: 90. },
-        ]
-    }
-}
 
 /// The 'mode' used in computing averaged power spectra. When providing data in
 /// blocks to the [AvPowerSpectra] the resulting 'current estimate' responds
diff --git a/src/ps/mod.rs b/src/ps/mod.rs
index 3fae073..9fa52e2 100644
--- a/src/ps/mod.rs
+++ b/src/ps/mod.rs
@@ -15,6 +15,7 @@ use crate::config::*;
 
 
 pub use freqweighting::FreqWeighting;
-pub use aps::{ApsSettings, ApsSettingsBuilder,ApsMode, AvPowerSpectra, Overlap};
+pub use overlap::Overlap;
+pub use aps::{ApsSettings, ApsSettingsBuilder,ApsMode, AvPowerSpectra};
 pub use ps::{CrossPowerSpecra, PowerSpectra, CPSResult};
 pub use window::{Window, WindowType};
diff --git a/src/ps/overlap.rs b/src/ps/overlap.rs
index 018ab88..1cee18f 100644
--- a/src/ps/overlap.rs
+++ b/src/ps/overlap.rs
@@ -2,7 +2,7 @@ use crate::config::*;
 ///  Provide the overlap of blocks for computing averaged (cross) power spectra.
 ///  Can be provided as a percentage of the block size, or as a number of
 ///  samples.
-#[cfg_attr(feature = "python-bindings", pyclass)]
+#[cfg_attr(feature = "python-bindings", pyclass(frozen))]
 #[derive(Clone, Debug, PartialEq)]
 pub enum Overlap {
     /// Overlap specified as a percentage of the total FFT length. Value should
@@ -33,6 +33,10 @@ impl Overlap {
         self == other
     }
 
+    fn __str__(&self) -> String {
+        self.name()
+    }
+
     #[staticmethod]
     #[pyo3(name = "default")]
     fn default_py() -> Self {
@@ -51,4 +55,24 @@ impl Overlap {
             Percentage { pct: 90. },
         ]
     }
-}
\ No newline at end of file
+}
+impl Overlap {
+    fn name(&self) -> String {
+        use Overlap::*;
+        match &self {
+            NoOverlap {} => "No overlap".into(),
+            Percentage { pct } => format! {"{} %", pct},
+            Number { N } => format! {"{} samples", N},
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use crate::ps::overlap::Overlap;
+
+    #[test]
+    fn test_overlap1() {
+        assert_eq!(Overlap::NoOverlap {}.name(), "No overlap");
+    }
+}