diff --git a/README.md b/README.md new file mode 100644 index 0000000..2680887 --- /dev/null +++ b/README.md @@ -0,0 +1,64 @@ +# astra + +Ein lokaler deutscher Sprachagent für Apple Silicon. Kein Cloud-Anruf, kein +Tracking, kein gespeichertes Audio — Spracherkennung, Sprachmodell und +Sprachausgabe laufen alle auf deinem Mac. + +## Wie es funktioniert + +Drei lokale Modelle, verbunden über eine [Pipecat](https://github.com/pipecat-ai/pipecat)-Pipeline: + +| Stufe | Modell | Wo | +|---|---|---| +| Spracherkennung | Nemotron ASR (streaming) | MLX, on-device | +| Sprachmodell | Qwen 3.5 | über natives Ollama `/api/chat` | +| Sprachausgabe | Pocket TTS, Stimme „alba" | MLX, on-device | + +Der Browser spricht per WebRTC direkt mit einem FastAPI-Server auf +`localhost:7860`. Der Server ist bewusst nur lokal erreichbar: Host- und +Origin-Prüfung auf jedem Request, strikte Content-Security-Policy, keine +offenen Ports nach außen. + +## Starten + +```bash +uv sync +uv run python -m astra.prepare # lädt & prüft alle drei Modelle einmalig +uv run python -m astra.server # startet auf http://localhost:7860 +``` + +Ollama muss separat laufen (`ollama serve`) und `qwen3.5:latest` muss +gezogen sein. Die Seite öffnen, Mikrofon erlauben, sprechen. + +## Konfiguration + +Über Umgebungsvariablen, siehe `astra/core.py::Settings`: + +| Variable | Default | +|---|---| +| `ASTRA_MODEL` | `qwen3.5:latest` | +| `ASTRA_OLLAMA_URL` | `http://127.0.0.1:11434` | +| `ASTRA_STT_MODEL` | `mlx-community/nemotron-3.5-asr-streaming-0.6b-8bit` | +| `ASTRA_TTS_LANGUAGE` | `german` | +| `ASTRA_VOICE` | `alba` | +| `ASTRA_PORT` | `7860` | + +## Tests + +```bash +uv run pytest +uv run ruff check . +``` + +## Sicherheit + +- Nur `localhost`/`127.0.0.1` erreichbar, alle anderen Hosts bekommen 403 +- POST-Requests werden gegen den erwarteten Origin geprüft +- `think` ist im Ollama-Request hart auf `false` gesetzt — die Pipeline + wirft, falls das Modell trotzdem Denkausgabe liefert +- Kein Audio, keine Transkripte werden auf Disk geschrieben; der + Gesprächsverlauf lebt nur im Speicher der laufenden Session + +--- + +Erstellt von Astra (Grunddeploy), gecheckt, dokumentiert und bewertet durch Claude. diff --git a/web/favicon.svg b/web/favicon.svg new file mode 100644 index 0000000..c4763dd --- /dev/null +++ b/web/favicon.svg @@ -0,0 +1,4 @@ + + + + diff --git a/web/index.html b/web/index.html index 55b3108..9b38013 100644 --- a/web/index.html +++ b/web/index.html @@ -5,6 +5,7 @@ Astra · Dein lokaler Sprachraum + @@ -24,7 +25,7 @@

Unser Gespräch

Hier erscheinen deine Worte und Astras Antworten.
Der Verlauf bleibt nur für dieses Gespräch im Speicher.

- + diff --git a/web/style.css b/web/style.css index b51fc94..6fdd19f 100644 --- a/web/style.css +++ b/web/style.css @@ -1,3 +1,3 @@ @font-face{font-family:system;src:local("Avenir Next")} :root{color-scheme:dark;--bg:#111820;--panel:#19222b;--text:#eef2ef;--muted:#a3b1b8;--accent:#b4e5cc;--border:#303c44} -*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 50% 25%,#1c2d34 0%,var(--bg) 58%);color:var(--text);font-family:system,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh}main{max-width:1060px;margin:auto;padding:36px 48px 25px}header{display:flex;justify-content:space-between;align-items:center}.brand{text-decoration:none;color:var(--text);font-size:30px;letter-spacing:-1.5px;font-weight:600}.star{color:var(--accent);font-size:35px;vertical-align:middle;margin-right:7px}.local{display:flex;align-items:center;gap:9px;font-size:12px;color:#c3d3ce;border:1px solid var(--border);padding:9px 13px;border-radius:30px}.local i{height:6px;width:6px;background:var(--accent);border-radius:50%}.conversation{text-align:center;padding:60px 0 34px}.eyebrow{font-size:10px;font-weight:600;letter-spacing:2.8px;color:var(--accent);margin-bottom:17px}h1{font-size:clamp(32px,5vw,49px);font-weight:500;letter-spacing:-1.8px;margin:0 0 13px}.description{font-size:14px;color:var(--muted);margin:0}.orb-wrap{position:relative;width:210px;height:210px;display:grid;place-items:center;margin:31px auto 15px}.orb{width:145px;height:145px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle at 30% 25%,#a3e1cf77,#4e938a22 55%,#172b3544);border:1px solid #a3d3c35c;box-shadow:inset 0 0 38px #92e1ce19,0 0 65px #84c5b215}.orbit{position:absolute;inset:6px;border:1px solid #9acdb01b;border-radius:50%;box-shadow:0 0 0 16px #98cdb104}.wave{height:40px;display:flex;align-items:center;gap:5px}.wave i{display:block;width:4px;height:13px;border-radius:5px;background:#d0f3e4;transition:height .3s}.wave i:nth-child(2),.wave i:nth-child(6){height:22px}.wave i:nth-child(3),.wave i:nth-child(5){height:32px}.wave i:nth-child(4){height:41px}body[data-state="speaking"] .wave i,body[data-state="listening"] .wave i{animation:voice 1.2s ease-in-out infinite alternate}.wave i:nth-child(2n){animation-delay:-.8s!important}.wave i:nth-child(3n){animation-delay:-.4s!important}@keyframes voice{to{height:8px;opacity:.6}}.live-status{display:flex;justify-content:center;align-items:center;gap:8px;height:27px}.live-status p{font-size:14px;margin:0}#state-dot{height:6px;width:6px;border-radius:50%;background:var(--muted)}body[data-state="listening"] #state-dot,body[data-state="speaking"] #state-dot{background:var(--accent)}.partial{color:var(--muted);font-size:13px;min-height:22px;max-width:640px;margin:13px auto 17px;overflow-wrap:anywhere}.controls{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}button{font:inherit;cursor:pointer;border:0;transition:background .2s,transform .2s}button:active{transform:translateY(1px)}button:focus-visible,a:focus-visible{outline:3px solid #d5f3e5;outline-offset:5px}.primary{background:var(--accent);color:#162c25;border-radius:9px;font-size:14px;font-weight:600;padding:15px 24px;min-width:211px}.primary:hover{background:#cef2df}.primary span{margin-right:9px}.primary:disabled{background:#43594f;color:#bfcbc4;cursor:wait}.secondary{border:1px solid #576b68;border-radius:9px;padding:14px 18px;background:transparent;color:var(--text);font-size:13px}.secondary[aria-pressed="true"]{background:#553a38;border-color:#c2887c}.hint{font-size:11px;color:var(--muted);margin:16px 0 0}.error{color:#ffd5cd;background:#4a2c2a;border:1px solid #8e564f;border-radius:9px;padding:12px;max-width:640px;margin:15px auto;font-size:13px;overflow-wrap:anywhere}.transcript{border:1px solid var(--border);border-radius:14px;background:#19222b9c;padding:22px 26px}.section-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);padding-bottom:16px}h2{margin:0;font-size:13px;font-weight:500}.text-button{color:var(--muted);background:none;font-size:11px;padding:7px}.text-button:hover{color:var(--text)}#messages{max-height:330px;overflow:auto;scroll-behavior:smooth;padding-top:5px}.empty{font-size:12px;color:var(--muted);line-height:1.9;text-align:center;padding:18px 0 12px}.message{padding:15px 0 7px}.message .speaker{font-size:10px;letter-spacing:1px;font-weight:600;text-transform:uppercase;color:var(--accent)}.message.user .speaker{color:#b1bdcb}.message p{font-size:14px;line-height:1.65;margin:6px 0;white-space:pre-wrap;overflow-wrap:anywhere}.message small{color:var(--muted);font-size:11px}footer{display:flex;justify-content:space-between;gap:15px;margin-top:21px;color:var(--muted);font-size:10px}footer b{padding:0 6px;font-weight:400}[hidden]{display:none!important}@media(max-width:620px){main{padding:23px 20px}.conversation{padding-top:44px}.description{max-width:270px;margin:auto;line-height:1.6}.local{font-size:10px;padding:8px 10px}.transcript{padding:18px}footer{flex-direction:column;gap:8px}.orb-wrap{margin-top:21px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}} +*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 50% 25%,#1c2d34 0%,var(--bg) 58%);color:var(--text);font-family:system,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh}main{max-width:1060px;margin:auto;padding:36px 48px 25px}header{display:flex;justify-content:space-between;align-items:center}.brand{text-decoration:none;color:var(--text);font-size:30px;letter-spacing:-1.5px;font-weight:600}.star{color:var(--accent);font-size:35px;vertical-align:middle;margin-right:7px}.local{display:flex;align-items:center;gap:9px;font-size:12px;color:#c3d3ce;border:1px solid var(--border);padding:9px 13px;border-radius:30px}.local i{height:6px;width:6px;background:var(--accent);border-radius:50%}.conversation{text-align:center;padding:60px 0 34px}.eyebrow{font-size:10px;font-weight:600;letter-spacing:2.8px;color:var(--accent);margin-bottom:17px}h1{font-size:clamp(32px,5vw,49px);font-weight:500;letter-spacing:-1.8px;margin:0 0 13px}.description{font-size:14px;color:var(--muted);margin:0}.orb-wrap{position:relative;width:210px;height:210px;display:grid;place-items:center;margin:31px auto 15px}.orb{width:145px;height:145px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle at 30% 25%,#a3e1cf77,#4e938a22 55%,#172b3544);border:1px solid #a3d3c35c;box-shadow:inset 0 0 38px #92e1ce19,0 0 65px #84c5b215}.orbit{position:absolute;inset:6px;border:1px solid #9acdb01b;border-radius:50%;box-shadow:0 0 0 16px #98cdb104}.wave{height:40px;display:flex;align-items:center;gap:5px}.wave i{display:block;width:4px;height:13px;border-radius:5px;background:#d0f3e4;transition:height .3s}.wave i:nth-child(2),.wave i:nth-child(6){height:22px}.wave i:nth-child(3),.wave i:nth-child(5){height:32px}.wave i:nth-child(4){height:41px}body[data-state="speaking"] .wave i,body[data-state="listening"] .wave i{animation:voice 1.2s ease-in-out infinite alternate}.wave i:nth-child(2n){animation-delay:-.8s!important}.wave i:nth-child(3n){animation-delay:-.4s!important}@keyframes voice{to{height:8px;opacity:.6}}.live-status{display:flex;justify-content:center;align-items:center;gap:8px;height:27px}.live-status p{font-size:14px;margin:0}#state-dot{height:6px;width:6px;border-radius:50%;background:var(--muted)}body[data-state="listening"] #state-dot,body[data-state="speaking"] #state-dot{background:var(--accent)}.partial{color:var(--muted);font-size:13px;min-height:22px;max-width:640px;margin:13px auto 17px;overflow-wrap:anywhere}.controls{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}button{font:inherit;cursor:pointer;border:0;transition:background .2s,transform .2s}button:active{transform:translateY(1px)}button:focus-visible,a:focus-visible{outline:3px solid #d5f3e5;outline-offset:5px}.primary{background:var(--accent);color:#162c25;border-radius:9px;font-size:14px;font-weight:600;padding:15px 24px;min-width:211px}.primary:hover{background:#cef2df}.primary span{margin-right:9px}.primary:disabled{background:#43594f;color:#bfcbc4;cursor:wait}.secondary{border:1px solid #576b68;border-radius:9px;padding:14px 18px;background:transparent;color:var(--text);font-size:13px}.secondary[aria-pressed="true"]{background:#553a38;border-color:#c2887c}.hint{font-size:11px;color:var(--muted);margin:16px 0 0}.error{color:#ffd5cd;background:#4a2c2a;border:1px solid #8e564f;border-radius:9px;padding:12px;max-width:640px;margin:15px auto;font-size:13px;overflow-wrap:anywhere}.transcript{border:1px solid var(--border);border-radius:14px;background:#19222b9c;padding:22px 26px}.section-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);padding-bottom:16px}h2{margin:0;font-size:13px;font-weight:500}.text-button{color:var(--muted);background:none;font-size:11px;padding:7px}.text-button:hover{color:var(--text)}#messages{max-height:330px;overflow:auto;scroll-behavior:smooth;padding-top:5px}.empty{font-size:12px;color:var(--muted);line-height:1.9;text-align:center;padding:18px 0 12px}.message{padding:15px 0 7px}.message .speaker{font-size:10px;letter-spacing:1px;font-weight:600;text-transform:uppercase;color:var(--accent)}.message.user .speaker{color:#b1bdcb}.message p{font-size:14px;line-height:1.65;margin:6px 0;white-space:pre-wrap;overflow-wrap:anywhere}.message small{color:var(--muted);font-size:11px}footer{display:flex;justify-content:space-between;gap:15px;margin-top:21px;color:var(--muted);font-size:10px}footer b{padding:0 6px;font-weight:400}.credits{display:flex;align-items:center}footer a{color:var(--muted);text-decoration:none}footer a:hover{color:var(--accent)}[hidden]{display:none!important}@media(max-width:620px){main{padding:23px 20px}.conversation{padding-top:44px}.description{max-width:270px;margin:auto;line-height:1.6}.local{font-size:10px;padding:8px 10px}.transcript{padding:18px}footer{flex-direction:column;gap:8px}.orb-wrap{margin-top:21px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}