improved unit tests

Flake lock file updates:

• Updated input 'firefox-addons':
    'gitlab:rycee/nur-expressions/0d05242?dir=pkgs/firefox-addons' (2025-11-20)
  → 'gitlab:rycee/nur-expressions/cefce78?dir=pkgs/firefox-addons' (2025-11-21)
• Updated input 'home-manager':
    'github:nix-community/home-manager/ea164b7' (2025-11-17)
  → 'github:nix-community/home-manager/d10a9b1' (2025-11-21)
• Updated input 'nixpkgs-master':
    'github:nixos/nixpkgs/973aa8b' (2025-11-21)
  → 'github:nixos/nixpkgs/8a7cf7e' (2025-11-22)

.agent/workflows/format_code.md

@@ -0,0 +1,9 @@
+---
+description: Format code using treefmt
+---
+
+// turbo
+1. Run treefmt
+    ```bash
+    treefmt
+    ```

.github/workflows/fix_eval_warnings.yml

@@ -0,0 +1,48 @@
+name: Fix Evaluation Warnings
+
+on:
+  workflow_run:
+    workflows: ["build_systems"]
+    types:
+      - completed
+
+permissions:
+  contents: write
+  pull-requests: write
+  actions: read
+
+jobs:
+  analyze-and-fix:
+    runs-on: self-hosted
+    if: ${{ github.event.workflow_run.conclusion == 'success' || github.event.workflow_run.conclusion == 'failure' }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Download logs
+        env:
+          GH_TOKEN: ${{ github.token }}
+          RUN_ID: ${{ github.event.workflow_run.id }}
+        run: |
+          gh run view $RUN_ID --log > build.log
+          
+      - name: Run Fix Script
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+          GITHUB_REPOSITORY: ${{ github.repository }}
+          RUN_ID: ${{ github.event.workflow_run.id }}
+          PYTHONPATH: .
+        run: |
+          python3 python/tools/fix_eval_warnings.py build.log
+
+      - name: Create Pull Request
+        if: hashFiles('fix_suggestions.md') != ''
+        uses: peter-evans/create-pull-request@v6
+        with:
+          token: ${{ github.token }}
+          commit-message: "fix: automated evaluation warning fixes"
+          title: "fix: automated evaluation warning fixes"
+          body-path: fix_suggestions.md
+          branch: "auto-fix-eval-warnings-${{ github.event.workflow_run.id }}"
+          base: main
+          labels: "automated-fix"

.gitignore

@@ -165,3 +165,4 @@ test.*
 
 # syncthing
 .stfolder
+fix_suggestions.md

AGENTS.md

@@ -0,0 +1,12 @@
+## Dev environment tips
+
+- use treefmt to format all files
+- keep new code consistent with the existing style
+
+### Python
+
+- make code `ruff` compliant
+- use pytest to test python code tests should be put in `tests` directory
+- dont use global state
+- use google style docstrings
+- use typer over argparse

common/global/ssh.nix

@@ -37,6 +37,8 @@
         TcpKeepAlive = "no";
         X11Forwarding = lib.mkDefault false;
         KexAlgorithms = [
+          "sntrup761x25519-sha512@openssh.com"
+          "mlkem768x25519-sha256"
           "curve25519-sha256@libssh.org"
           "diffie-hellman-group-exchange-sha256"
         ];

docs/cool_tools.md

@@ -1,9 +0,0 @@
-# Cool tools
-
-A collection of cool tools I've found.
-
-- <https://github.com/9001/copyparty>
-- <https://github.com/google/magika>
-- <https://github.com/pytest-dev/pyfakefs>
-- <https://pyreadiness.org/>
-- <https://testcontainers.com/>

docs/index.md

@@ -15,11 +15,3 @@ You can read my latest posts below
   </li>
   {% endfor %}
 </ul>
-
-## Other Resources
-
-<ul>
-  <li>
-    <a href="{{ './cool_tools.md' | relative_url }}">Cool Tools</a>
-  </li>
-</ul>

esphome/batteries.yml

@@ -1,129 +0,0 @@
-esphome:
-  name: batteries
-  friendly_name: batteries
-
-esp32:
-  board: esp32dev
-  framework:
-    type: arduino
-
-logger:
-
-api:
-  encryption:
-    key: !secret api_key
-
-external_components:
-  - source: github://syssi/esphome-jk-bms@main
-
-ota:
-  - platform: esphome
-    password: !secret ota_password
-
-wifi:
-  ssid: !secret wifi_ssid
-  password: !secret wifi_password
-
-captive_portal:
-
-esp32_ble_tracker:
-  scan_parameters:
-    interval: 1100ms
-    window: 1100ms
-    active: true
-
-ble_client:
-  - mac_address: "C8:47:80:29:0F:DB"
-    id: jk_ble0
-  - mac_address: "C8:47:80:37:9D:DD"
-    id: jk_ble1
-
-jk_bms_ble:
-  - ble_client_id: jk_ble0
-    protocol_version: JK02_32S
-    throttle: 1s
-    id: jk_bms0
-
-  - ble_client_id: jk_ble1
-    protocol_version: JK02_32S
-    throttle: 1s
-    id: jk_bms1
-
-sensor:
-  # BMS1 sensors
-  - platform: jk_bms_ble
-    jk_bms_ble_id: jk_bms0
-    total_voltage:
-      name: "JK0 Total Voltage"
-    current:
-      name: "JK0 Current"
-    state_of_charge:
-      name: "JK0 SoC"
-    power:
-      name: "JK0 Power"
-    temperature_sensor_1:
-      name: "JK0 Temp 1"
-    temperature_sensor_2:
-      name: "JK0 Temp 2"
-    balancing:
-      name: "JK0 balancing"
-    charging_cycles:
-      name: "JK0 charging cycles"
-    total_runtime:
-      name: "JK0 total runtime"
-    balancing_current:
-      name: "JK0 balancing current"
-
-  # BMS2 sensors
-  - platform: jk_bms_ble
-    jk_bms_ble_id: jk_bms1
-    total_voltage:
-      name: "JK1 Total Voltage"
-    current:
-      name: "JK1 Current"
-    state_of_charge:
-      name: "JK1 SoC"
-    power:
-      name: "Jk1 Power"
-    temperature_sensor_1:
-      name: "JK1 Temp 1"
-    temperature_sensor_2:
-      name: "Jk1 Temp 2"
-    balancing:
-      name: "JK1 balancing"
-    charging_cycles:
-      name: "JK1 charging cycles"
-    total_runtime:
-      name: "JK1 total runtime"
-    balancing_current:
-      name: "JK1 balancing current"
-
-text_sensor:
-  - platform: jk_bms_ble
-    jk_bms_ble_id: jk_bms0
-    errors:
-      name: "JK0 Errors"
-
-  - platform: jk_bms_ble
-    jk_bms_ble_id: jk_bms1
-    errors:
-      name: "JK1 Errors"
-
-switch:
-  - platform: jk_bms_ble
-    jk_bms_ble_id: jk_bms0
-    charging:
-      name: "JK0 Charging"
-    discharging:
-      name: "JK0 Discharging"
-    balancer:
-      name: "JK0 Balancing"
-
-  - platform: jk_bms_ble
-    jk_bms_ble_id: jk_bms1
-    charging:
-      name: "JK1 Charging"
-    discharging:
-      name: "JK1 Discharging"
-    balancer:
-      name: "JK1 Balancing"

esphome/battery0.yml

@@ -0,0 +1,132 @@
+esphome:
+  name: batteries
+  friendly_name: batteries
+
+esp32:
+  board: esp32dev
+  framework:
+    type: arduino
+
+logger:
+
+api:
+  encryption:
+    key: !secret api_key
+
+external_components:
+  - source: github://syssi/esphome-jk-bms@main
+
+ota:
+  - platform: esphome
+    password: !secret ota_password
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+  fast_connect: on
+
+captive_portal:
+
+esp32_ble_tracker:
+  scan_parameters:
+    interval: 1100ms
+    window: 1100ms
+    active: true
+
+ble_client:
+  - mac_address: "C8:47:80:29:0F:DB"
+    id: jk_ble0
+
+jk_bms_ble:
+  - ble_client_id: jk_ble0
+    protocol_version: JK02_32S
+    throttle: 1s
+    id: jk_bms0
+
+button:
+  - platform: jk_bms_ble
+    retrieve_settings:
+      name: "JK0 retrieve settings"
+    retrieve_device_info:
+      name: "JK0 retrieve device info"
+
+sensor:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms0
+    total_voltage:
+      name: "JK0 Total Voltage"
+    state_of_charge:
+      name: "JK0 SoC"
+    charging_power:
+      name: "JK0 charging power"
+    discharging_power:
+      name: "JK0 discharging power"
+    temperature_sensor_1:
+      name: "JK0 Temp 1"
+    temperature_sensor_2:
+      name: "JK0 Temp 2"
+    balancing:
+      name: "JK0 balancing"
+    total_runtime:
+      name: "JK0 total runtime"
+    balancing_current:
+      name: "JK0 balancing current"
+    delta_cell_voltage:
+      name: "JK0 cell delta voltage"
+    average_cell_voltage:
+      name: "JK0 cell average voltage"
+    cell_voltage_1:
+      name: "JK0 cell voltage 1"
+    cell_voltage_2:
+      name: "JK0 cell voltage 2"
+    cell_voltage_3:
+      name: "JK0 cell voltage 3"
+    cell_voltage_4:
+      name: "JK0 cell voltage 4"
+    cell_voltage_5:
+      name: "JK0 cell voltage 5"
+    cell_voltage_6:
+      name: "JK0 cell voltage 6"
+    cell_voltage_7:
+      name: "JK0 cell voltage 7"
+    cell_voltage_8:
+      name: "JK0 cell voltage 8"
+    cell_resistance_1:
+      name: "JK0 cell resistance 1"
+    cell_resistance_2:
+      name: "JK0 cell resistance 2"
+    cell_resistance_3:
+      name: "JK0 cell resistance 3"
+    cell_resistance_4:
+      name: "JK0 cell resistance 4"
+    cell_resistance_5:
+      name: "JK0 cell resistance 5"
+    cell_resistance_6:
+      name: "JK0 cell resistance 6"
+    cell_resistance_7:
+      name: "JK0 cell resistance 7"
+    cell_resistance_8:
+      name: "JK0 cell resistance 8"
+    total_charging_cycle_capacity:
+      name: "JK0 total charging cycle capacity"
+
+text_sensor:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms0
+    errors:
+      name: "JK0 Errors"
+
+switch:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms0
+    charging:
+      name: "JK0 Charging"
+    discharging:
+      name: "JK0 Discharging"
+    balancer:
+      name: "JK0 Balancing"
+
+  - platform: ble_client
+    ble_client_id: jk_ble0
+    name: "JK0 enable bluetooth connection"
+    id: ble_client_switch0

esphome/battery1.yml

@@ -0,0 +1,132 @@
+esphome:
+  name: battery1
+  friendly_name: battery1
+
+esp32:
+  board: esp32dev
+  framework:
+    type: arduino
+
+logger:
+
+api:
+  encryption:
+    key: !secret api_key
+
+external_components:
+  - source: github://syssi/esphome-jk-bms@main
+
+ota:
+  - platform: esphome
+    password: !secret ota_password
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+  fast_connect: on
+
+captive_portal:
+
+esp32_ble_tracker:
+  scan_parameters:
+    interval: 1100ms
+    window: 1100ms
+    active: true
+
+ble_client:
+  - mac_address: "C8:47:80:37:9D:DD"
+    id: jk_ble1
+
+jk_bms_ble:
+  - ble_client_id: jk_ble1
+    protocol_version: JK02_32S
+    throttle: 1s
+    id: jk_bms1
+
+button:
+  - platform: jk_bms_ble
+    retrieve_settings:
+      name: "JK1 retrieve settings"
+    retrieve_device_info:
+      name: "JK1 retrieve device info"
+
+sensor:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms1
+    total_voltage:
+      name: "JK1 Total Voltage"
+    state_of_charge:
+      name: "JK1 SoC"
+    charging_power:
+      name: "JK1 charging power"
+    discharging_power:
+      name: "JK1 discharging power"
+    temperature_sensor_1:
+      name: "JK1 Temp 1"
+    temperature_sensor_2:
+      name: "JK1 Temp 2"
+    balancing:
+      name: "JK1 balancing"
+    total_runtime:
+      name: "JK1 total runtime"
+    balancing_current:
+      name: "JK1 balancing current"
+    delta_cell_voltage:
+      name: "JK1 cell delta voltage"
+    average_cell_voltage:
+      name: "JK1 cell average voltage"
+    cell_voltage_1:
+      name: "JK1 cell voltage 1"
+    cell_voltage_2:
+      name: "JK1 cell voltage 2"
+    cell_voltage_3:
+      name: "JK1 cell voltage 3"
+    cell_voltage_4:
+      name: "JK1 cell voltage 4"
+    cell_voltage_5:
+      name: "JK1 cell voltage 5"
+    cell_voltage_6:
+      name: "JK1 cell voltage 6"
+    cell_voltage_7:
+      name: "JK1 cell voltage 7"
+    cell_voltage_8:
+      name: "JK1 cell voltage 8"
+    cell_resistance_1:
+      name: "JK1 cell resistance 1"
+    cell_resistance_2:
+      name: "JK1 cell resistance 2"
+    cell_resistance_3:
+      name: "JK1 cell resistance 3"
+    cell_resistance_4:
+      name: "JK1 cell resistance 4"
+    cell_resistance_5:
+      name: "JK1 cell resistance 5"
+    cell_resistance_6:
+      name: "JK1 cell resistance 6"
+    cell_resistance_7:
+      name: "JK1 cell resistance 7"
+    cell_resistance_8:
+      name: "JK1 cell resistance 8"
+    total_charging_cycle_capacity:
+      name: "JK1 total charging cycle capacity"
+
+text_sensor:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms1
+    errors:
+      name: "JK1 Errors"
+
+switch:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms1
+    charging:
+      name: "JK1 Charging"
+    discharging:
+      name: "JK1 Discharging"
+    balancer:
+      name: "JK1 Balancing"
+
+  - platform: ble_client
+    ble_client_id: jk_ble1
+    name: "JK1 enable bluetooth connection"
+    id: ble_client_switch0

esphome/environment.yml

@@ -0,0 +1,48 @@
+esphome:
+  name: "environment"
+  friendly_name: "environment"
+
+esp32:
+  board: esp32dev
+  framework:
+    type: arduino
+
+i2c:
+  sda: GPIO21
+  scl: GPIO22
+  scan: True
+  id: bus_a
+
+sensor:
+  - platform: aht10
+    i2c_id: bus_a
+    address: 0x38
+    variant: AHT20
+    temperature:
+      name: "environment Temperature"
+      id: aht10_temperature
+    humidity:
+      name: "environment Humidity"
+      id: aht10_humidity
+    update_interval: 5s
+
+web_server:
+  port: 80
+
+logger:
+  level: DEBUG
+
+api:
+  encryption:
+    key: !secret api_key
+
+ota:
+  - platform: esphome
+    password: !secret ota_password
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+  fast_connect: on
+
+captive_portal:

flake.lock

@@ -8,11 +8,11 @@
       },
       "locked": {
         "dir": "pkgs/firefox-addons",
-        "lastModified": 1763093017,
+        "lastModified": 1763697825,
-        "narHash": "sha256-FjnOyxTNNt85ZNjtLqRnG23LKQyvilGzyrO0bLffMm8=",
+        "narHash": "sha256-AgCCcVPOi1tuzuW5/StlwqBjRWSX62oL97qWuxrq5UA=",
         "owner": "rycee",
         "repo": "nur-expressions",
-        "rev": "d84c9ea299c1e4629f0d0716799f5c57975021ce",
+        "rev": "cefce78793603231be226fa77e7ad58e0e4899b8",
         "type": "gitlab"
       },
       "original": {
@@ -29,11 +29,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1762964643,
+        "lastModified": 1763748372,
-        "narHash": "sha256-RYHN8O/Aja59XDji6WSJZPkJpYVUfpSkyH+PEupBJqM=",
+        "narHash": "sha256-AUc78Qv3sWir0hvbmfXoZ7Jzq9VVL97l+sP9Jgms+JU=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "827f2a23373a774a8805f84ca5344654c31f354b",
+        "rev": "d10a9b16b2a3ee28433f3d1c603f4e9f1fecb8e1",
         "type": "github"
       },
       "original": {
@@ -60,11 +60,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1762977756,
+        "lastModified": 1763421233,
-        "narHash": "sha256-4PqRErxfe+2toFJFgcRKZ0UI9NSIOJa+7RXVtBhy4KE=",
+        "narHash": "sha256-Stk9ZYRkGrnnpyJ4eqt9eQtdFWRRIvMxpNRf4sIegnw=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "c5ae371f1a6a7fd27823bc500d9390b38c05fa55",
+        "rev": "89c2b2330e733d6cdb5eae7b899326930c2c0648",
         "type": "github"
       },
       "original": {
@@ -76,11 +76,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1763165634,
+        "lastModified": 1763774007,
-        "narHash": "sha256-jVuaLD1Yf2aHILt2EedLFhqJnQXAS8kIo3P4LbtYDyg=",
+        "narHash": "sha256-PPeHfKA11P09kBkBD5pS3tIAFjnG5muHQnODQGTY87g=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "20f91b6ba5eff456057e359946c3e832173b18df",
+        "rev": "8a7cf7e9e18384533d9ecd0bfbcf475ac1dc497e",
         "type": "github"
       },
       "original": {
@@ -125,11 +125,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1763069729,
+        "lastModified": 1763607916,
-        "narHash": "sha256-A91a+K0Q9wfdPLwL06e/kbHeAWSzPYy2EGdTDsyfb+s=",
+        "narHash": "sha256-VefBA1JWRXM929mBAFohFUtQJLUnEwZ2vmYUNkFnSjE=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "a2bcd1c25c1d29e22756ccae094032ab4ada2268",
+        "rev": "877bb495a6f8faf0d89fc10bd142c4b7ed2bcc0b",
         "type": "github"
       },
       "original": {

overlays/default.nix

@@ -3,14 +3,14 @@
   # When applied, the stable nixpkgs set (declared in the flake inputs) will be accessible through 'pkgs.stable'
   stable = final: _prev: {
     stable = import inputs.nixpkgs-stable {
-      system = final.system;
+      system = final.stdenv.hostPlatform.system;
       config.allowUnfree = true;
     };
   };
   # When applied, the master nixpkgs set (declared in the flake inputs) will be accessible through 'pkgs.master'
   master = final: _prev: {
     master = import inputs.nixpkgs-master {
-      system = final.system;
+      system = final.stdenv.hostPlatform.system;
       config.allowUnfree = true;
     };
   };

pyproject.toml

@@ -58,7 +58,7 @@ builtins-ignorelist = ["id"]
 max-args = 9
 
 [tool.coverage.run]
-source = ["system_tools"]
+source = ["python"]
 
 [tool.coverage.report]
 exclude_lines = [

python/tools/fix_eval_warnings.py

@@ -0,0 +1,161 @@
+#!/usr/bin/env python3
+"""fix_eval_warnings."""
+
+from __future__ import annotations
+
+import logging
+import os
+from dataclasses import dataclass
+from pathlib import Path
+
+import requests
+import typer
+
+from python.common import configure_logger
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class Config:
+    """Configuration for the script.
+
+    Attributes:
+        github_token (str): GitHub token for API authentication.
+        model_name (str): The name of the LLM model to use. Defaults to "gpt-4o".
+        api_base (str): The base URL for the GitHub Models API.
+            Defaults to "https://models.inference.ai.azure.com".
+    """
+
+    github_token: str
+    model_name: str = "gpt-4o"
+    api_base: str = "https://models.inference.ai.azure.com"
+
+
+def get_log_content(run_id: str) -> None:
+    """Fetch the logs for a specific workflow run.
+
+    Args:
+        run_id (str): The run ID.
+    """
+    logger.info(f"Fetching logs for run ID: {run_id}")
+    # List artifacts to find logs (or use jobs API)
+    # For simplicity, we might need to use 'gh' cli in the workflow to download logs
+    # But let's try to read from a file if passed as argument, which is easier for the workflow
+
+
+def parse_warnings(log_file_path: Path) -> list[str]:
+    """Parse the log file for evaluation warnings.
+
+    Args:
+        log_file_path (Path): The path to the log file.
+
+    Returns:
+        list[str]: A list of warning messages.
+    """
+    warnings = []
+    with log_file_path.open(encoding="utf-8", errors="ignore") as f:
+        warnings.extend(line.strip() for line in f if "evaluation warning:" in line)
+    return warnings
+
+
+def generate_fix(warning_msg: str, config: Config) -> str | None:
+    """Call GitHub Models to generate a fix for the warning.
+
+    Args:
+        warning_msg (str): The warning message.
+        config (Config): The configuration object.
+
+    Returns:
+        Optional[str]: The suggested fix or None.
+    """
+    logger.info(f"Generating fix for: {warning_msg}")
+
+    prompt = f"""
+    I encountered the following Nix evaluation warning:
+
+    `{warning_msg}`
+
+    Please explain what this warning means and suggest how to fix it in the Nix code.
+    If possible, provide the exact code change in a diff format or a clear description of what to change.
+    """
+
+    headers = {"Content-Type": "application/json", "Authorization": f"Bearer {config.github_token}"}
+
+    payload = {
+        "messages": [
+            {"role": "system", "content": "You are an expert NixOS and Nix language developer."},
+            {"role": "user", "content": prompt},
+        ],
+        "model": config.model_name,
+        "temperature": 0.1,
+    }
+
+    try:
+        response = requests.post(f"{config.api_base}/chat/completions", headers=headers, json=payload, timeout=30)
+        response.raise_for_status()
+        result = response.json()
+        return result["choices"][0]["message"]["content"]  # type: ignore[no-any-return]
+    except Exception:
+        logger.exception("Error calling LLM")
+        return None
+
+
+def main(
+    log_file: Path = typer.Argument(..., help="Path to the build log file"),  # noqa: B008
+    model_name: str = typer.Option("gpt-4o", envvar="MODEL_NAME", help="LLM Model Name"),
+) -> None:
+    """Detect evaluation warnings in logs and suggest fixes using GitHub Models.
+
+    Args:
+        log_file (Path): Path to the build log file containing evaluation warnings.
+        model_name (str): The name of the LLM model to use for generating fixes.
+            Defaults to "gpt-4o", can be overridden by MODEL_NAME environment variable.
+    """
+    configure_logger()
+
+    github_token = os.environ.get("GITHUB_TOKEN")
+    if not github_token:
+        logger.warning("GITHUB_TOKEN not set. LLM calls will fail.")
+
+    config = Config(github_token=github_token or "", model_name=model_name)
+
+    if not log_file.exists():
+        logger.error(f"Log file not found: {log_file}")
+        raise typer.Exit(code=1)
+
+    warnings = parse_warnings(log_file)
+    if not warnings:
+        logger.info("No evaluation warnings found.")
+        raise typer.Exit(code=0)
+
+    logger.info(f"Found {len(warnings)} warnings.")
+
+    # Process unique warnings to save tokens
+    unique_warnings = list(set(warnings))
+
+    fixes = []
+    for warning in unique_warnings:
+        if not config.github_token:
+            logger.warning("Skipping LLM call due to missing GITHUB_TOKEN")
+            continue
+
+        fix = generate_fix(warning, config)
+        if fix:
+            fixes.append(f"## Warning\n`{warning}`\n\n## Suggested Fix\n{fix}\n")
+
+    # Output fixes to a markdown file for the PR body
+    if fixes:
+        with Path("fix_suggestions.md").open("w") as f:
+            f.write("# Automated Fix Suggestions\n\n")
+            f.write("\n---\n".join(fixes))
+        logger.info("Fix suggestions written to fix_suggestions.md")
+    else:
+        logger.info("No fixes generated.")
+
+
+app = typer.Typer()
+app.command()(main)
+
+if __name__ == "__main__":
+    app()

systems/brain/services/home_assistant/battery_sensors.yaml

@@ -1,45 +1,7 @@
-template:
-  - sensor:
-      # Battery 0
-      - name: "JK0 charge power W"
-        unique_id: jk0_charge_power_w
-        unit_of_measurement: W
-        device_class: power
-        state_class: measurement
-        state: >
-          {% set p = states('sensor.batteries_jk0_power')|float(0) %}
-          {{ max(0, p) }}
-      - name: "JK0 discharge power W"
-        unique_id: jk0_discharge_power_w
-        unit_of_measurement: W
-        device_class: power
-        state_class: measurement
-        state: >
-          {% set p = states('sensor.batteries_jk0_power')|float(0) %}
-          {{ max(0, -p) }}
-
-      # Battery 1
-      - name: "JK1 charge power W"
-        unique_id: jk1_charge_power_w
-        unit_of_measurement: W
-        device_class: power
-        state_class: measurement
-        state: >
-          {% set p = states('sensor.batteries_jk1_power')|float(0) %}
-          {{ max(0, p) }}
-      - name: "JK1 discharge power W"
-        unique_id: jk1_discharge_power_w
-        unit_of_measurement: W
-        device_class: power
-        state_class: measurement
-        state: >
-          {% set p = states('sensor.batteries_jk1_power')|float(0) %}
-          {{ max(0, -p) }}
-
 sensor:
   # Battery 0
   - platform: integration
-    source: sensor.jk0_charge_power_w
+    source: sensor.batteries_jk0_charging_power
     name: "JK0 energy in"
     unique_id: jk0_energy_in_kwh
     unit_prefix: k
@@ -48,7 +10,7 @@ sensor:
     max_sub_interval:
       minutes: 5
   - platform: integration
-    source: sensor.jk0_discharge_power_w
+    source: sensor.batteries_jk0_charging_power
     name: "JK0 energy out"
     unique_id: jk0_energy_out_kwh
     unit_prefix: k
@@ -59,7 +21,7 @@ sensor:
 
   # Battery 1
   - platform: integration
-    source: sensor.jk1_charge_power_w
+    source: sensor.battery1_jk1_charging_power
     name: "JK1 energy in"
     unique_id: jk1_energy_in_kwh
     unit_prefix: k
@@ -68,7 +30,7 @@ sensor:
     max_sub_interval:
       minutes: 5
   - platform: integration
-    source: sensor.jk1_discharge_power_w
+    source: sensor.battery1_jk1_discharge_power
     name: "JK1 energy out"
     unique_id: jk1_energy_out_kwh
     unit_prefix: k

tests/conftest.py

@@ -0,0 +1,6 @@
+"""Fixtures for tests."""
+
+from __future__ import annotations
+
+PASSWORD = "password"  # noqa: S105
+TOKEN = "token"  # noqa: S105

tests/test_fix_eval_warnings.py

@@ -0,0 +1,75 @@
+"""test_fix_eval_warnings."""
+
+from __future__ import annotations
+
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+from typer.testing import CliRunner
+
+from python.tools.fix_eval_warnings import Config, app, generate_fix, parse_warnings
+from tests.conftest import TOKEN
+
+if TYPE_CHECKING:
+    from pyfakefs.fake_filesystem import FakeFilesystem
+    from pytest_mock import MockerFixture
+
+runner = CliRunner()
+
+
+def test_parse_warnings(fs: FakeFilesystem) -> None:
+    """test_parse_warnings."""
+    log_file = Path("/build.log")
+    fs.create_file(
+        log_file,
+        contents="Some output\nevaluation warning: 'system' is deprecated\nMore output",
+        encoding="utf-8",
+    )
+    warnings = parse_warnings(log_file)
+    assert len(warnings) == 1
+    assert warnings[0] == "evaluation warning: 'system' is deprecated"
+
+
+def test_generate_fix(mocker: MockerFixture) -> None:
+    """test_generate_fix."""
+    mock_post = mocker.patch("python.tools.fix_eval_warnings.requests.post")
+    mock_response = mocker.MagicMock()
+    mock_response.json.return_value = {
+        "choices": [{"message": {"content": "Use stdenv.hostPlatform.system"}}]
+    }
+    mock_post.return_value = mock_response
+
+    config = Config(github_token=TOKEN)
+    fix = generate_fix("evaluation warning: 'system' is deprecated", config)
+
+    assert fix == "Use stdenv.hostPlatform.system"
+    mock_post.assert_called_once()
+
+
+def test_main(mocker: MockerFixture, fs: FakeFilesystem) -> None:
+    """test_main."""
+    log_file = Path("/build.log")
+    fs.create_file(
+        log_file,
+        contents="Some output\nevaluation warning: 'system' is deprecated\nMore output",
+        encoding="utf-8",
+    )
+
+    mock_generate_fix = mocker.patch("python.tools.fix_eval_warnings.generate_fix")
+    mock_generate_fix.return_value = "Fixed it"
+    mock_logger = mocker.patch("python.tools.fix_eval_warnings.logger")
+
+    # We need to mock GITHUB_TOKEN env var or the script will warn/fail
+    mocker.patch.dict("os.environ", {"GITHUB_TOKEN": TOKEN})
+
+    result = runner.invoke(app, [str(log_file)])
+
+    assert result.exit_code == 0
+    # Verify logger calls instead of stdout, as CliRunner might not capture logging output correctly
+    # when logging is configured to write to sys.stdout directly.
+    assert any("Found 1 warnings" in str(call) for call in mock_logger.info.call_args_list)
+    assert any(
+        "Fix suggestions written to fix_suggestions.md" in str(call)
+        for call in mock_logger.info.call_args_list
+    )
+    assert Path("fix_suggestions.md").exists()

users/dov/home/cli/git.nix

@@ -1,9 +1,11 @@
 {
   programs.git = {
     enable = true;
-    userEmail = "dov.kruger@gmail.com";
+    settings = {
-    userName = "Dov Kruger";
+      user = {
-    extraConfig = {
+        email = "dov.kruger@gmail.com";
+        name = "Dov Kruger";
+      };
       pull.rebase = true;
       color.ui = true;
     };

users/elise/home/cli/git.nix

@@ -1,9 +1,11 @@
 {
   programs.git = {
     enable = true;
-    userEmail = "DumbPuppy208@gmail.com";
+    settings = {
-    userName = "Elise Corvidae";
+      user = {
-    extraConfig = {
+        email = "DumbPuppy208@gmail.com";
+        name = "Elise Corvidae";
+      };
       pull.rebase = true;
       color.ui = true;
     };

users/math/home/cli/git.nix

@@ -1,9 +1,11 @@
 {
   programs.git = {
     enable = true;
-    userEmail = "matthew.michal11@gmail.com";
+    settings = {
-    userName = "Matthew Michal";
+      user = {
-    extraConfig = {
+        email = "matthew.michal11@gmail.com";
+        name = "Matthew Michal";
+      };
       pull.rebase = true;
       color.ui = true;
     };

users/megan/home/cli/git.nix

@@ -1,9 +1,11 @@
 {
   programs.git = {
     enable = true;
-    userEmail = "mousikos112@gmail.com";
+    settings = {
-    userName = "megan";
+      user = {
-    extraConfig = {
+        email = "mousikos112@gmail.com";
+        name = "megan";
+      };
       pull.rebase = true;
       color.ui = true;
     };

users/richie/home/cli/git.nix

@@ -1,9 +1,11 @@
 {
   programs.git = {
     enable = true;
-    userEmail = "Richie@tmmworkshop.com";
+    settings = {
-    userName = "Richie Cahill";
+      user = {
-    extraConfig = {
+        email = "Richie@tmmworkshop.com";
+        name = "Richie Cahill";
+      };
       pull.rebase = true;
       color.ui = true;
     };

users/richie/home/gui/default.nix

@@ -9,23 +9,24 @@
   home.packages = with pkgs; [
     candy-icons
     chromium
-    discord-canary
     gimp
-    gparted
-    jetbrains.datagrip
     mediainfo
-    nemo
-    nemo-fileroller
     obs-studio
     obsidian
     prismlauncher
-    proxychains
     prusa-slicer
-    signal-desktop
     sweet-nova
     util-linux
     vlc
+    # comms
+    discord-canary
+    signal-desktop
     zoom-us
+    # dev tools
+    jetbrains.datagrip
+    proxychains
+    master.antigravity-fhs
+    gparted
     # games
     dwarf-fortress
     tower-pixel-dungeon