diff --git a/README.md b/README.md
index 9861eb0..d9b3646 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ For now, this is a proof-of-concept.
 ## Features
 
 - Relay emails received on a locally listening SMTP server
-- Encrypt and sign the relayed mails (experimental)
+- Encrypt and sign the relayed mails
 
 
 ## Installation/Hacking
@@ -57,7 +57,7 @@ Please read https://radicle.xyz/guides/user to get used to clone this repo with
 
 If you just want to clone the repo without `radicle` you can clone the repo with `git clone https://seed.radicle.garden/z3gWc1qgaeZaoGwL4WTstLNoqjayM.git smtprd-ng`
 
-Beware: This is very early alpha ;-)
+Beware: This is alpha ;-)
 
 ## License
 
@@ -86,13 +86,58 @@ Where
 
 Plese note: Right now, there is no way to set a password, so the private key is unprotected and should only be used for this automation and have appropiate file permissions. I might add the option to set a password through the config file in the future, though.
 
+### Systemd
+
+An example `systemd` file is in the `sytemd` subfolder. Be sure to replace @smtprd@ with a path to the python executable. 
+
+For `NixOS` you yan use the provided `nixosModule` like so: 
+
+```nix
+# flake.nix
+{
+  inputs.smtp = {
+    url = "git+https://seed.radicle.garden/z3gWc1qgaeZaoGwL4WTstLNoqjayM.git";
+
+  };
+
+  outputs = inputs@{ ... }: {
+
+    nixosConfigurations = {
+      my-config = inputs.nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          inputs.smtp.nixosModules.smtprd-ng
+          {
+            services.smtprd-ng = {
+                enable = true;
+                client = {
+                  hostname = "smtp.example.com";
+                  username = "username";
+                  password_file = "/etc/smtp_pw";
+                  sender = "username@example.com";
+                  start_tls = true;
+                  smime_cert = "${./smime.crt}";
+                  smime_cert_private = "/etc/private.key";
+                };
+                emails = {
+                  "monitor@example.com" = "${./cert_for_monitor_example_com}";
+                  "second_monitor@example.com" = "";
+                };
+              };
+          }
+        ];
+      };
+    };
+  };
+}
+
+```
+
 
 ## Roadmap
 
 - Add wheel for pypi
 
-- Add systemd service
-
 - Cleanup code
 
 
diff --git a/default.nix b/default.nix
index 59ce8f2..cc86358 100644
--- a/default.nix
+++ b/default.nix
@@ -1,11 +1,8 @@
-{ pkgs ? import <nixpkgs> { }
-, lib ? pkgs.lib
-,
-}:
+{ pkgs ? import <nixpkgs> { }, lib ? pkgs.lib, }:
 
 pkgs.python3Packages.buildPythonPackage rec {
   pname = "smtprd-ng";
-  version = "git";
+  version = "0.1.0";
   pyproject = true;
 
   src = lib.cleanSource ./.;
@@ -24,7 +21,8 @@ pkgs.python3Packages.buildPythonPackage rec {
 
   meta = {
     description = "SMTP forwarding relay daemon with signing and encryption";
-    homepage = "https://app.radicle.xyz/nodes/seed.radicle.garden/rad:z3gWc1qgaeZaoGwL4WTstLNoqjayM";
+    homepage =
+      "https://app.radicle.xyz/nodes/seed.radicle.garden/rad:z3gWc1qgaeZaoGwL4WTstLNoqjayM";
     license = lib.licenses.agpl3Only;
     maintainers = [ lib.maintainers.gador ];
   };
diff --git a/devenv.nix b/devenv.nix
index a736435..0e47b80 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -6,15 +6,6 @@ in {
   # https://devenv.sh/packages/
   packages = [ pkgs.file pkgs.swig4 pkgs.openssl ];
 
-  # https://devenv.sh/tests/
-  # enterTest = ''
-  #   echo "Running tests"
-  #   git --version | grep "2.42.0"
-  # '';
-
-  # https://devenv.sh/services/
-  # services.postgres.enable = true;
-
   # https://devenv.sh/languages/
   languages.nix.enable = true;
   languages.python = {
@@ -42,9 +33,4 @@ in {
     detect-private-keys.excludes = [ "tests/" ];
 
   };
-
-  # https://devenv.sh/processes/
-  # processes.ping.exec = "ping example.com";
-
-  # See full reference at https://devenv.sh/reference/options/
 }
diff --git a/pyproject.toml b/pyproject.toml
index a720972..86b38cb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "smtprd-ng"
-version = "0.0.1"
+version = "0.1.0"
 description = "SMTP forwarding relay daemon with signing and encryption"
 authors = [{ name = "Florian Brandes", email = "dev@mail.flo-the.dev" }]
 classifiers = [
diff --git a/smtprd_ng/smtprd.py b/smtprd_ng/smtprd.py
index 08b68c4..74be8d7 100644
--- a/smtprd_ng/smtprd.py
+++ b/smtprd_ng/smtprd.py
@@ -139,6 +139,7 @@ class Config:
                 password=cls._read_from_file(
                     (config.get("client", "password_file", fallback=""))
                 ),
+                # TODO: Remove or add nixos option
                 set_reply_to=config.getboolean(
                     "client", "set_reply_to", fallback=False
                 ),