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phantom-ship: services.ollama + qwen2.5:3b-instruct for bon extraction

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dannydannydanny 2026-05-08 07:23:08 +02:00
parent 647d748d30
commit 327bdc11fe
1 changed files with 17 additions and 2 deletions
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19
nixos/hosts/phantom-ship.nix
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@ -394,10 +394,22 @@ in
}; };
}; };
# bon — receipt scanner Mini App (camera capture + gallery + OCR). # Ollama — local LLM runtime, used by bon's structured-data extraction
# step. Listens on 127.0.0.1:11434 only (not exposed over ZT). The
# qwen2.5:3b-instruct model is pre-pulled at boot via loadModels.
services.ollama = {
enable = true;
host = "127.0.0.1";
port = 11434;
# ~2.5 GB on disk after Q4_K_M quantization. Phantom-ship has plenty.
loadModels = [ "qwen2.5:3b-instruct" ];
};
# bon — receipt scanner Mini App (camera capture + gallery + OCR + extract).
# Code rsync'd from ~/python-projects/26_bon/ to /home/danny/bon/ # Code rsync'd from ~/python-projects/26_bon/ to /home/danny/bon/
# Images on disk under /home/danny/.local/share/bon/images/<user_id>/ # Images on disk under /home/danny/.local/share/bon/images/<user_id>/
# OCR via tesseract (binary on PATH; server uses subprocess directly). # OCR via tesseract (binary on PATH; server uses subprocess directly).
# Structured extraction via local Ollama (qwen2.5:3b-instruct).
systemd.services.bon = let systemd.services.bon = let
pythonEnv = pkgs.python3.withPackages (ps: with ps; [ pythonEnv = pkgs.python3.withPackages (ps: with ps; [
fastapi fastapi
@ -405,6 +417,7 @@ in
python-telegram-bot python-telegram-bot
python-multipart python-multipart
pillow pillow
httpx # for the Ollama HTTP call from extract.py
]); ]);
# English-only for now — Danish receipts in DK are mostly English chars # English-only for now — Danish receipts in DK are mostly English chars
# plus prices, which `eng` handles fine. Add more languages later if # plus prices, which `eng` handles fine. Add more languages later if
@ -414,7 +427,7 @@ in
}; };
in { in {
description = "bon FastAPI server (receipt scanner)"; description = "bon FastAPI server (receipt scanner)";
after = [ "network-online.target" ]; after = [ "network-online.target" "ollama.service" ];
wants = [ "network-online.target" ]; wants = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ]; wantedBy = [ "multi-user.target" ];
path = [ pythonEnv tesseractEng ]; path = [ pythonEnv tesseractEng ];
@ -422,6 +435,8 @@ in
SHIPYARD_BOT_TOKEN_FILE = "/home/danny/.secrets/telegram-bot-token-shipyard"; SHIPYARD_BOT_TOKEN_FILE = "/home/danny/.secrets/telegram-bot-token-shipyard";
BON_DB_PATH = "/home/danny/.local/share/bon/bon.db"; BON_DB_PATH = "/home/danny/.local/share/bon/bon.db";
BON_IMAGES_DIR = "/home/danny/.local/share/bon/images"; BON_IMAGES_DIR = "/home/danny/.local/share/bon/images";
BON_OLLAMA_URL = "http://127.0.0.1:11434";
BON_OLLAMA_MODEL = "qwen2.5:3b-instruct";
}; };
serviceConfig = { serviceConfig = {
WorkingDirectory = "/home/danny/bon"; WorkingDirectory = "/home/danny/bon";