diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
new file mode 100644
index 0000000..5cc074c
--- /dev/null
+++ b/.gitea/workflows/release.yml
@@ -0,0 +1,40 @@
+# Release-Matrix: bei Tag v* → Tests → Artefakte für alle Plattformen →
+# Gitea-Release mit Assets talk_<os>_<arch>[.exe] + checksums.txt.
+name: release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # git describe braucht die Tags
+      - name: Go einrichten
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+      - name: Tests
+        run: go vet ./... && go test ./...
+      - name: Artefakte bauen
+        run: scripts/release.sh "${{ github.ref_name }}"
+      - name: Gitea-Release anlegen und Assets hochladen
+        uses: https://gitea.com/actions/gitea-release-action@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          tag_name: ${{ github.ref_name }}
+          name: talk ${{ github.ref_name }}
+          body: |
+            Statische Binaries (CGO_ENABLED=0), Prüfsummen in `checksums.txt`.
+
+            Installation: passendes `talk_<os>_<arch>` laden, Prüfsumme vergleichen,
+            als `talk` in den PATH legen, `talk doctor`. Der Daemon startet beim ersten
+            Sprechbefehl von selbst.
+          files: |-
+            dist/talk_*
+            dist/checksums.txt
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..741ec6a
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,70 @@
+{
+  # talk — Sprach-Ausgaben für Skripte und KI-Agenten.
+  #
+  # Nutzung in einer NixOS-/Home-Manager-Konfiguration:
+  #   inputs.talk.url = "git+https://code.m3ta.dev/m3tam3re/talk";
+  #   environment.systemPackages = [ inputs.talk.packages.${system}.talk ];
+  # oder als Overlay: nixpkgs.overlays = [ inputs.talk.overlays.default ];
+  #
+  # Dieses Flake ersetzt langfristig m3ta-nixpkgs talk/crunch (bash + mpv).
+  description = "talk — Voice-Notifications für Skripte und KI-Agenten (ein Binary, Daemon mit Queue)";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+  outputs = { self, nixpkgs }:
+    let
+      systems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forAll = f: nixpkgs.lib.genAttrs systems (system: f nixpkgs.legacyPackages.${system});
+      version = if self ? shortRev then "0.0.0-${self.shortRev}" else "0.0.0-dirty";
+      mkTalk = pkgs: pkgs.buildGoModule {
+        pname = "talk";
+        inherit version;
+        src = self;
+        subPackages = [ "cmd/talk" ];
+        # Nach Änderungen an go.mod/go.sum neu setzen: `nix build` nennt den
+        # erwarteten Hash.
+        vendorHash = "sha256-CbF3juTA7V05hh1ElKKACddsCn4bIPeLZxsz2EZxs9I=";
+        env.CGO_ENABLED = 0;
+        ldflags = [ "-s" "-w" "-X" "main.version=${version}" "-X" "main.commit=${self.shortRev or "dirty"}" ];
+        # Prozessgrenzen-Tests starten Daemons und binden Ports — nicht in der Sandbox.
+        doCheck = false;
+        # Audio: oto spricht PulseAudio/PipeWire direkt (reines Go) und fällt auf
+        # ALSA zurück, das es zur Laufzeit per dlopen lädt — auf NixOS nur
+        # auffindbar, wenn wir es in den Pfad legen. OS-Stimme: espeak-ng.
+        nativeBuildInputs = pkgs.lib.optionals pkgs.stdenv.isLinux [ pkgs.makeWrapper ];
+        postInstall = pkgs.lib.optionalString pkgs.stdenv.isLinux ''
+          wrapProgram $out/bin/talk \
+            --prefix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath [ pkgs.alsa-lib ]} \
+            --prefix PATH : ${pkgs.lib.makeBinPath [ pkgs.espeak-ng pkgs.libnotify ]}
+        '';
+        meta = with pkgs.lib; {
+          description = "Voice-Notifications für Skripte und KI-Agenten";
+          homepage = "https://code.m3ta.dev/m3tam3re/talk";
+          license = licenses.mit;
+          mainProgram = "talk";
+          platforms = platforms.unix;
+        };
+      };
+    in
+    {
+      packages = forAll (pkgs: rec {
+        talk = mkTalk pkgs;
+        default = talk;
+      });
+
+      apps = forAll (pkgs: rec {
+        talk = { type = "app"; program = "${mkTalk pkgs}/bin/talk"; };
+        default = talk;
+      });
+
+      overlays.default = final: prev: { talk = mkTalk final; };
+
+      devShells = forAll (pkgs: {
+        default = pkgs.mkShell {
+          packages = [ pkgs.go pkgs.gopls pkgs.gotools pkgs.espeak-ng pkgs.libnotify ];
+        };
+      });
+
+      formatter = forAll (pkgs: pkgs.nixfmt-rfc-style);
+    };
+}
diff --git a/scripts/release.sh b/scripts/release.sh
new file mode 100755
index 0000000..2c99a13
--- /dev/null
+++ b/scripts/release.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env sh
+# Baut die Release-Artefakte von talk für alle Zielplattformen — reproduzierbar
+# mit nichts als dem Go-Toolchain (kein GoReleaser nötig; so läuft derselbe
+# Schritt lokal, in Gitea Actions und in nix identisch).
+#
+# Asset-Vertrag (agent-lib-Muster, Fleet-Rollout pinnt darauf):
+#   dist/talk_<os>_<arch>[.exe]   statisches Binary, CGO_ENABLED=0
+#   dist/checksums.txt            sha256 je Asset (sha256sum-Format)
+#
+# Aufruf:  scripts/release.sh [VERSION]      (Default: git describe, sonst "dev")
+# Env:     TARGETS="linux/amd64 …" überschreibt die Matrix.
+set -eu
+
+cd "$(dirname "$0")/.."
+VERSION="${1:-$(git describe --tags --always --dirty 2>/dev/null || echo dev)}"
+VERSION="${VERSION#v}"
+COMMIT="$(git rev-parse --short HEAD 2>/dev/null || echo unknown)"
+TARGETS="${TARGETS:-linux/amd64 linux/arm64 darwin/amd64 darwin/arm64 windows/amd64 windows/arm64}"
+DIST=dist
+
+rm -rf "$DIST"
+mkdir -p "$DIST"
+for target in $TARGETS; do
+  os="${target%/*}"
+  arch="${target#*/}"
+  out="$DIST/talk_${os}_${arch}"
+  [ "$os" = windows ] && out="$out.exe"
+  echo "build $out"
+  CGO_ENABLED=0 GOOS="$os" GOARCH="$arch" go build -trimpath \
+    -ldflags "-s -w -X main.version=$VERSION -X main.commit=$COMMIT" \
+    -o "$out" ./cmd/talk
+done
+(cd "$DIST" && sha256sum talk_* > checksums.txt)
+echo
+echo "Version $VERSION ($COMMIT):"
+cat "$DIST/checksums.txt"