w

Flake lock file updates:

• Updated input 'firefox-addons':
    'gitlab:rycee/nur-expressions/5cca27f1bb30a26140d0cf60ab34daa45b4fa11f?dir=pkgs/firefox-addons&narHash=sha256-h%2BliPhhMw1yYvkDGLHzQJQShQs%2ByLjNgjfAyZX%2BsRrM%3D' (2025-10-17)
  → 'gitlab:rycee/nur-expressions/d84c9ea299c1e4629f0d0716799f5c57975021ce?dir=pkgs/firefox-addons&narHash=sha256-FjnOyxTNNt85ZNjtLqRnG23LKQyvilGzyrO0bLffMm8%3D' (2025-11-14)
• Updated input 'home-manager':
    'github:nix-community/home-manager/722792af097dff5790f1a66d271a47759f477755?narHash=sha256-mlDqR1Ntgs9uYYEAUR1IhamKBO0lxoNS4zGLzEZaY0A%3D' (2025-10-17)
  → 'github:nix-community/home-manager/827f2a23373a774a8805f84ca5344654c31f354b?narHash=sha256-RYHN8O/Aja59XDji6WSJZPkJpYVUfpSkyH%2BPEupBJqM%3D' (2025-11-12)
• Updated input 'nixos-hardware':
    'github:nixos/nixos-hardware/9ed85f8afebf2b7478f25db0a98d0e782c0ed903?narHash=sha256-2GoxVaKWTHBxRoeUYSjv0AfSOx4qw5CWSFz2b%2BVolKU%3D' (2025-10-10)
  → 'github:nixos/nixos-hardware/899dc449bc6428b9ee6b3b8f771ca2b0ef945ab9?narHash=sha256-BWWnUUT01lPwCWUvS0p6Px5UOBFeXJ8jR%2BZdLX8IbrU%3D' (2025-11-11)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/544961dfcce86422ba200ed9a0b00dd4b1486ec5?narHash=sha256-EVAqOteLBFmd7pKkb0%2BFIUyzTF61VKi7YmvP1tw4nEw%3D' (2025-10-15)
  → 'github:nixos/nixpkgs/c5ae371f1a6a7fd27823bc500d9390b38c05fa55?narHash=sha256-4PqRErxfe%2B2toFJFgcRKZ0UI9NSIOJa%2B7RXVtBhy4KE%3D' (2025-11-12)
• Updated input 'nixpkgs-master':
    'github:nixos/nixpkgs/d85429339c0bcf0428084fe1306c970aed364417?narHash=sha256-1296zQfPiLZNrLKzX1t%2BkunadeI/mH82hKze3voduEI%3D' (2025-10-18)
  → 'github:nixos/nixpkgs/20f91b6ba5eff456057e359946c3e832173b18df?narHash=sha256-jVuaLD1Yf2aHILt2EedLFhqJnQXAS8kIo3P4LbtYDyg%3D' (2025-11-15)
• Updated input 'sops-nix':
    'github:Mic92/sops-nix/ab8d56e85b8be14cff9d93735951e30c3e86a437?narHash=sha256-8mN3kqyqa2PKY0wwZ2UmMEYMcxvNTwLaOrrDsw6Qi4E%3D' (2025-10-13)
  → 'github:Mic92/sops-nix/a2bcd1c25c1d29e22756ccae094032ab4ada2268?narHash=sha256-A91a%2BK0Q9wfdPLwL06e/kbHeAWSzPYy2EGdTDsyfb%2Bs%3D' (2025-11-13)

.github/workflows/pytest.yml

@@ -16,4 +16,4 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Run tests
-        run: pytest tests
+        run: nix develop .#devShells.x86_64-linux.default -c pytest tests

.vscode/settings.json

@@ -252,6 +252,7 @@
     "schemeless",
     "scrollback",
     "SECUREFOX",
+    "sessionmaker",
     "sessionstore",
     "shellcheck",
     "signon",
@@ -263,6 +264,7 @@
     "socialtracking",
     "sonarr",
     "sponsorblock",
+    "sqlalchemy",
     "sqltools",
     "ssdp",
     "SSHOPTS",
@@ -325,5 +327,10 @@
     "zoxide",
     "zram",
     "zstd"
-  ]
+  ],
+  "python-envs.defaultEnvManager": "ms-python.python:system",
+  "python-envs.pythonProjects": [],
+  "python.testing.pytestArgs": ["tests"],
+  "python.testing.unittestEnabled": false,
+  "python.testing.pytestEnabled": true
 }

common/global/default.nix

@@ -44,7 +44,10 @@
     # firmware update
     fwupd.enable = true;
 
-    snapshot_manager.enable = lib.mkDefault true;
+    snapshot_manager = {
+      enable = lib.mkDefault true;
+      PYTHONPATH = "${inputs.self}/";
+    };
 
     zfs = {
       trim.enable = lib.mkDefault true;

common/global/snapshot_manager.nix

@@ -1,5 +1,4 @@
 {
-  inputs,
   pkgs,
   lib,
   config,
@@ -17,6 +16,12 @@ in
         default = ./snapshot_config.toml;
         description = "Path to the snapshot_manager TOML config.";
       };
+      PYTHONPATH = lib.mkOption {
+        type = lib.types.str;
+        description = ''
+          the PYTHONPATH to use for the snapshot_manager service.
+        '';
+      };
       EnvironmentFile = lib.mkOption {
         type = lib.types.nullOr (lib.types.coercedTo lib.types.path toString lib.types.str);
         default = null;
@@ -35,11 +40,12 @@ in
         requires = [ "zfs-import.target" ];
         after = [ "zfs-import.target" ];
         path = [ pkgs.zfs ];
+        environment = {
+          PYTHONPATH = cfg.PYTHONPATH;
+        };
         serviceConfig = {
           Type = "oneshot";
-          ExecStart = "${
-            inputs.system_tools.packages.${pkgs.system}.default
-          }/bin/snapshot_manager ${lib.escapeShellArg cfg.path}";
+          ExecStart = "${pkgs.my_python}/bin/python -m python.tools.snapshot_manager ${lib.escapeShellArg cfg.path}";
         }
         // lib.optionalAttrs (cfg.EnvironmentFile != null) {
           EnvironmentFile = cfg.EnvironmentFile;

common/optional/desktop.nix

@@ -1,8 +1,8 @@
 { pkgs, ... }:
 {
   boot = {
-    kernelPackages = pkgs.linuxPackages_6_16;
-    zfs.package = pkgs.zfs_2_3;
+    kernelPackages = pkgs.linuxPackages_6_17;
+    zfs.package = pkgs.zfs_unstable;
   };
 
   hardware.bluetooth = {

docs/cool_tools.md

@@ -0,0 +1,9 @@
+# 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

@@ -15,3 +15,11 @@ 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>

flake.lock

@@ -8,11 +8,11 @@
       },
       "locked": {
         "dir": "pkgs/firefox-addons",
-        "lastModified": 1760673822,
-        "narHash": "sha256-h+liPhhMw1yYvkDGLHzQJQShQs+yLjNgjfAyZX+sRrM=",
+        "lastModified": 1763093017,
+        "narHash": "sha256-FjnOyxTNNt85ZNjtLqRnG23LKQyvilGzyrO0bLffMm8=",
         "owner": "rycee",
         "repo": "nur-expressions",
-        "rev": "5cca27f1bb30a26140d0cf60ab34daa45b4fa11f",
+        "rev": "d84c9ea299c1e4629f0d0716799f5c57975021ce",
         "type": "gitlab"
       },
       "original": {
@@ -29,11 +29,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1760662441,
-        "narHash": "sha256-mlDqR1Ntgs9uYYEAUR1IhamKBO0lxoNS4zGLzEZaY0A=",
+        "lastModified": 1762964643,
+        "narHash": "sha256-RYHN8O/Aja59XDji6WSJZPkJpYVUfpSkyH+PEupBJqM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "722792af097dff5790f1a66d271a47759f477755",
+        "rev": "827f2a23373a774a8805f84ca5344654c31f354b",
         "type": "github"
       },
       "original": {
@@ -44,11 +44,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1760106635,
-        "narHash": "sha256-2GoxVaKWTHBxRoeUYSjv0AfSOx4qw5CWSFz2b+VolKU=",
+        "lastModified": 1762847253,
+        "narHash": "sha256-BWWnUUT01lPwCWUvS0p6Px5UOBFeXJ8jR+ZdLX8IbrU=",
         "owner": "nixos",
         "repo": "nixos-hardware",
-        "rev": "9ed85f8afebf2b7478f25db0a98d0e782c0ed903",
+        "rev": "899dc449bc6428b9ee6b3b8f771ca2b0ef945ab9",
         "type": "github"
       },
       "original": {
@@ -60,11 +60,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1760524057,
-        "narHash": "sha256-EVAqOteLBFmd7pKkb0+FIUyzTF61VKi7YmvP1tw4nEw=",
+        "lastModified": 1762977756,
+        "narHash": "sha256-4PqRErxfe+2toFJFgcRKZ0UI9NSIOJa+7RXVtBhy4KE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "544961dfcce86422ba200ed9a0b00dd4b1486ec5",
+        "rev": "c5ae371f1a6a7fd27823bc500d9390b38c05fa55",
         "type": "github"
       },
       "original": {
@@ -76,11 +76,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1760751316,
-        "narHash": "sha256-1296zQfPiLZNrLKzX1t+kunadeI/mH82hKze3voduEI=",
+        "lastModified": 1763165634,
+        "narHash": "sha256-jVuaLD1Yf2aHILt2EedLFhqJnQXAS8kIo3P4LbtYDyg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "d85429339c0bcf0428084fe1306c970aed364417",
+        "rev": "20f91b6ba5eff456057e359946c3e832173b18df",
         "type": "github"
       },
       "original": {
@@ -106,56 +106,6 @@
         "type": "github"
       }
     },
-    "pyproject-build-systems": {
-      "inputs": {
-        "nixpkgs": [
-          "system_tools",
-          "nixpkgs"
-        ],
-        "pyproject-nix": [
-          "system_tools",
-          "pyproject-nix"
-        ],
-        "uv2nix": [
-          "system_tools",
-          "uv2nix"
-        ]
-      },
-      "locked": {
-        "lastModified": 1744599653,
-        "narHash": "sha256-nysSwVVjG4hKoOjhjvE6U5lIKA8sEr1d1QzEfZsannU=",
-        "owner": "pyproject-nix",
-        "repo": "build-system-pkgs",
-        "rev": "7dba6dbc73120e15b558754c26024f6c93015dd7",
-        "type": "github"
-      },
-      "original": {
-        "owner": "pyproject-nix",
-        "repo": "build-system-pkgs",
-        "type": "github"
-      }
-    },
-    "pyproject-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "system_tools",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1746540146,
-        "narHash": "sha256-QxdHGNpbicIrw5t6U3x+ZxeY/7IEJ6lYbvsjXmcxFIM=",
-        "owner": "pyproject-nix",
-        "repo": "pyproject.nix",
-        "rev": "e09c10c24ebb955125fda449939bfba664c467fd",
-        "type": "github"
-      },
-      "original": {
-        "owner": "pyproject-nix",
-        "repo": "pyproject.nix",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "firefox-addons": "firefox-addons",
@@ -165,7 +115,6 @@
         "nixpkgs-master": "nixpkgs-master",
         "nixpkgs-stable": "nixpkgs-stable",
         "sops-nix": "sops-nix",
-        "system_tools": "system_tools",
         "systems": "systems"
       }
     },
@@ -176,11 +125,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1760393368,
-        "narHash": "sha256-8mN3kqyqa2PKY0wwZ2UmMEYMcxvNTwLaOrrDsw6Qi4E=",
+        "lastModified": 1763069729,
+        "narHash": "sha256-A91a+K0Q9wfdPLwL06e/kbHeAWSzPYy2EGdTDsyfb+s=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "ab8d56e85b8be14cff9d93735951e30c3e86a437",
+        "rev": "a2bcd1c25c1d29e22756ccae094032ab4ada2268",
         "type": "github"
       },
       "original": {
@@ -189,29 +138,6 @@
         "type": "github"
       }
     },
-    "system_tools": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "pyproject-build-systems": "pyproject-build-systems",
-        "pyproject-nix": "pyproject-nix",
-        "uv2nix": "uv2nix"
-      },
-      "locked": {
-        "lastModified": 1760751967,
-        "narHash": "sha256-u/uciy9kpM/CBZKl05iAZRaOTwUHiuI0L/qbkk2mLUg=",
-        "owner": "RichieCahill",
-        "repo": "system_tools",
-        "rev": "a125c3e5c01cecbc3f2a842ffb1abb1210c35706",
-        "type": "github"
-      },
-      "original": {
-        "owner": "RichieCahill",
-        "repo": "system_tools",
-        "type": "github"
-      }
-    },
     "systems": {
       "locked": {
         "lastModified": 1689347949,
@@ -226,31 +152,6 @@
         "repo": "default-linux",
         "type": "github"
       }
-    },
-    "uv2nix": {
-      "inputs": {
-        "nixpkgs": [
-          "system_tools",
-          "nixpkgs"
-        ],
-        "pyproject-nix": [
-          "system_tools",
-          "pyproject-nix"
-        ]
-      },
-      "locked": {
-        "lastModified": 1747441483,
-        "narHash": "sha256-W8BFXk5R0TuJcjIhcGoMpSOaIufGXpizK0pm+uTqynA=",
-        "owner": "pyproject-nix",
-        "repo": "uv2nix",
-        "rev": "582024dc64663e9f88d467c2f7f7b20d278349de",
-        "type": "github"
-      },
-      "original": {
-        "owner": "pyproject-nix",
-        "repo": "uv2nix",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -31,11 +31,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    system_tools = {
-      url = "github:RichieCahill/system_tools";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
     sops-nix = {
       url = "github:Mic92/sops-nix";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -59,6 +54,7 @@
         system:
         import nixpkgs {
           inherit system;
+          overlays = builtins.attrValues outputs.overlays;
           config.allowUnfree = true;
         }
       );

overlays/default.nix

@@ -22,6 +22,7 @@
         apscheduler
         mypy
         polars
+        psycopg
         pyfakefs
         pytest
         pytest-cov
@@ -29,6 +30,7 @@
         pytest-xdist
         requests
         ruff
+        sqlalchemy
         typer
         types-requests
       ]

python/database.py

@@ -0,0 +1,59 @@
+"""database."""
+
+from __future__ import annotations
+
+import logging
+from typing import TYPE_CHECKING
+
+from sqlalchemy import inspect
+from sqlalchemy.exc import NoInspectionAvailable
+
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
+    from sqlalchemy.orm import Session
+
+logger = logging.getLogger(__name__)
+
+
+def safe_insert(orm_objects: Sequence[object], session: Session) -> list[tuple[Exception, object]]:
+    """Safer insert at allows for partial rollbacks.
+
+    Args:
+        orm_objects (Sequence[object]): Tables to insert.
+        session (Session): Database session.
+    """
+    if unmapped := [orm_object for orm_object in orm_objects if not _is_mapped_instance(orm_object)]:
+        error = f"safe_insert expects ORM-mapped instances {unmapped}"
+        raise TypeError(error)
+    return _safe_insert(orm_objects, session)
+
+
+def _safe_insert(objects: Sequence[object], session: Session) -> list[tuple[Exception, object]]:
+    exceptions: list[tuple[Exception, object]] = []
+    try:
+        session.add_all(objects)
+        session.commit()
+
+    except Exception as error:
+        session.rollback()
+
+        objects_len = len(objects)
+        if objects_len == 1:
+            logger.exception(objects)
+            return [(error, objects[0])]
+
+        middle = objects_len // 2
+        exceptions.extend(_safe_insert(objects=objects[:middle], session=session))
+        exceptions.extend(_safe_insert(objects=objects[middle:], session=session))
+    return exceptions
+
+
+def _is_mapped_instance(obj: object) -> bool:
+    """Return True if `obj` is a SQLAlchemy ORM-mapped instance."""
+    try:
+        inspect(obj)  # raises NoInspectionAvailable if not mapped
+    except NoInspectionAvailable:
+        return False
+    else:
+        return True

python/random/voltage_drop.py

@@ -85,7 +85,7 @@ def get_material_resistivity(
 ) -> float:
     """Get the resistivity of a material."""
     if not temperature:
-        Temperature(20.0)
+        temperature = Temperature(20.0)
     material_info = {
         MaterialType.COPPER: (1.724e-8, 0.00393),
         MaterialType.ALUMINUM: (2.908e-8, 0.00403),
@@ -180,7 +180,7 @@ def max_wire_length(
         float: Maximum wire length in meters that maintains the specified voltage drop
     """
     if not temperature:
-        Temperature(100.0, unit=TemperatureUnit.FAHRENHEIT)
+        temperature = Temperature(100.0, unit=TemperatureUnit.FAHRENHEIT)
 
     resistivity = get_material_resistivity(material, temperature)
     resistance_per_meter = resistivity / calculate_wire_area_m2(gauge)

shell.nix

@@ -9,6 +9,7 @@
       nix
       home-manager
       git
+      my_python
 
       ssh-to-age
       gnupg

systems/bob/default.nix

@@ -1,18 +1,19 @@
+{ inputs, ... }:
 {
   imports = [
-    ../../users/richie
-    ../../users/gaming
-    ../../common/global
-    ../../common/optional/desktop.nix
-    ../../common/optional/docker.nix
-    ../../common/optional/scanner.nix
-    ../../common/optional/steam.nix
-    ../../common/optional/syncthing_base.nix
-    ../../common/optional/systemd-boot.nix
-    ../../common/optional/update.nix
-    ../../common/optional/yubikey.nix
-    ../../common/optional/zerotier.nix
-    ../../common/optional/nvidia.nix
+    "${inputs.self}/users/richie"
+    "${inputs.self}/users/gaming"
+    "${inputs.self}/common/global"
+    "${inputs.self}/common/optional/desktop.nix"
+    "${inputs.self}/common/optional/docker.nix"
+    "${inputs.self}/common/optional/scanner.nix"
+    "${inputs.self}/common/optional/steam.nix"
+    "${inputs.self}/common/optional/syncthing_base.nix"
+    "${inputs.self}/common/optional/systemd-boot.nix"
+    "${inputs.self}/common/optional/update.nix"
+    "${inputs.self}/common/optional/yubikey.nix"
+    "${inputs.self}/common/optional/zerotier.nix"
+    "${inputs.self}/common/optional/nvidia.nix"
     ./hardware.nix
     ./syncthing.nix
     ./llms.nix

systems/brain/default.nix

@@ -1,14 +1,14 @@
 { inputs, ... }:
 {
   imports = [
-    ../../users/richie
-    ../../common/global
-    ../../common/optional/docker.nix
-    ../../common/optional/ssh_decrypt.nix
-    ../../common/optional/syncthing_base.nix
-    ../../common/optional/systemd-boot.nix
-    ../../common/optional/update.nix
-    ../../common/optional/zerotier.nix
+    "${inputs.self}/users/richie"
+    "${inputs.self}/common/global"
+    "${inputs.self}/common/optional/docker.nix"
+    "${inputs.self}/common/optional/ssh_decrypt.nix"
+    "${inputs.self}/common/optional/syncthing_base.nix"
+    "${inputs.self}/common/optional/systemd-boot.nix"
+    "${inputs.self}/common/optional/update.nix"
+    "${inputs.self}/common/optional/zerotier.nix"
     ./docker
     ./hardware.nix
     ./programs.nix

systems/brain/services/home_assistant.nix

@@ -19,7 +19,6 @@
             "192.168.95.35"
             "127.0.0.1"
           ];
-          use_x_forwarded_for = true;
         };
         homeassistant = {
           time_zone = "America/New_York";
@@ -60,16 +59,17 @@
       };
       extraPackages =
         python3Packages: with python3Packages; [
-          pymodbus # for modbus
+          aioesphomeapi # for esphome
+          bleak-esphome # for esphome
+          esphome-dashboard-api # for esphome
+          forecast-solar # for solar forecast
           gtts # not sure what wants this
           jellyfin-apiclient-python # for jellyfin
           paho-mqtt # for mqtt
           psycopg2 # for postgresql
-          forecast-solar # for solar forecast
-          aioesphomeapi # for esphome
-          esphome-dashboard-api # for esphome
           py-improv-ble-client # for esphome
-          bleak-esphome # for esphome
+          pymodbus # for modbus
+          pyopenweathermap # for weather
         ];
       extraComponents = [ "isal" ];
     };

systems/brain/services/home_assistant/victron_modbuss.yaml

@@ -77,7 +77,7 @@ modbus:
 
       # GPS
       - name: GPS Latitude
-        slave: 100
+        slave: 1
         address: 2800
         input_type: holding
         data_type: int32
@@ -87,7 +87,7 @@ modbus:
         unique_id: gps_latitude
 
       - name: GPS Longitude
-        slave: 100
+        slave: 1
         address: 2802
         input_type: holding
         data_type: int32
@@ -97,7 +97,7 @@ modbus:
         unique_id: gps_longitude
 
       - name: GPS Course
-        slave: 100
+        slave: 1
         address: 2804
         input_type: holding
         data_type: uint16
@@ -108,7 +108,7 @@ modbus:
         unique_id: gps_course
 
       - name: GPS Speed
-        slave: 100
+        slave: 1
         address: 2805
         input_type: holding
         data_type: uint16
@@ -119,7 +119,7 @@ modbus:
         unique_id: gps_speed
 
       - name: GPS Fix
-        slave: 100
+        slave: 1
         address: 2806
         input_type: holding
         data_type: uint16
@@ -128,7 +128,7 @@ modbus:
         unique_id: gps_fix
 
       - name: GPS Satellites
-        slave: 100
+        slave: 1
         address: 2807
         input_type: holding
         data_type: uint16
@@ -137,7 +137,7 @@ modbus:
         unique_id: gps_satellites
 
       - name: GPS Altitude
-        slave: 100
+        slave: 1
         address: 2808
         input_type: holding
         data_type: int32

systems/jeeves/default.nix

@@ -1,17 +1,18 @@
+{ inputs, ... }:
 let
   vars = import ./vars.nix;
 in
 {
   imports = [
-    ../../users/richie
-    ../../users/math
-    ../../users/dov
-    ../../common/global
-    ../../common/optional/docker.nix
-    ../../common/optional/ssh_decrypt.nix
-    ../../common/optional/syncthing_base.nix
-    ../../common/optional/update.nix
-    ../../common/optional/zerotier.nix
+    "${inputs.self}/users/richie"
+    "${inputs.self}/users/math"
+    "${inputs.self}/users/dov"
+    "${inputs.self}/common/global"
+    "${inputs.self}/common/optional/docker.nix"
+    "${inputs.self}/common/optional/ssh_decrypt.nix"
+    "${inputs.self}/common/optional/syncthing_base.nix"
+    "${inputs.self}/common/optional/update.nix"
+    "${inputs.self}/common/optional/zerotier.nix"
     ./docker
     ./services
     ./hardware.nix

systems/jeeves/docker/great_cloud_of_witnesses.nix

@@ -1,7 +1,6 @@
 {
   config,
   pkgs,
-  lib,
   ...
 }:
 

systems/jeeves/services/home_assistant.nix

@@ -68,7 +68,7 @@ in
           jellyfin-apiclient-python
           psycopg2
           pymetno
-          pyownet
+          aio-ownet
           rokuecp
           uiprotect
           wakeonlan

systems/jeeves/services/systemd.nix

@@ -1,6 +1,6 @@
 {
-  inputs,
   pkgs,
+  inputs,
   ...
 }:
 let
@@ -22,10 +22,13 @@ in
         wantedBy = [ "multi-user.target" ];
         description = "validates startup";
         path = [ pkgs.zfs ];
+        environment = {
+          PYTHONPATH = "${inputs.self}/";
+        };
         serviceConfig = {
           EnvironmentFile = "${vars.secrets}/services/server-validation";
           Type = "oneshot";
-          ExecStart = "${inputs.system_tools.packages.x86_64-linux.default}/bin/validate_system '${./validate_system.toml}'";
+          ExecStart = "${pkgs.my_python}/bin/python -m python.system_tests.validate_system '${./validate_system.toml}'";
         };
       };
     };

systems/leviathan/default.nix

@@ -1,14 +1,14 @@
 { inputs, ... }:
 {
   imports = [
-    ../../users/elise
-    ../../users/richie
-    ../../common/global
-    ../../common/optional/desktop.nix
-    ../../common/optional/steam.nix
-    ../../common/optional/systemd-boot.nix
-    ../../common/optional/update.nix
-    ../../common/optional/zerotier.nix
+    "${inputs.self}/users/elise"
+    "${inputs.self}/users/richie"
+    "${inputs.self}/common/global"
+    "${inputs.self}/common/optional/desktop.nix"
+    "${inputs.self}/common/optional/steam.nix"
+    "${inputs.self}/common/optional/systemd-boot.nix"
+    "${inputs.self}/common/optional/update.nix"
+    "${inputs.self}/common/optional/zerotier.nix"
     ./hardware.nix
     inputs.nixos-hardware.nixosModules.framework-13-7040-amd
   ];

systems/rhapsody-in-green/default.nix

@@ -1,15 +1,15 @@
 { inputs, ... }:
 {
   imports = [
-    ../../users/richie
-    ../../common/global
-    ../../common/optional/desktop.nix
-    ../../common/optional/docker.nix
-    ../../common/optional/steam.nix
-    ../../common/optional/syncthing_base.nix
-    ../../common/optional/systemd-boot.nix
-    ../../common/optional/yubikey.nix
-    ../../common/optional/zerotier.nix
+    "${inputs.self}/users/richie"
+    "${inputs.self}/common/global"
+    "${inputs.self}/common/optional/desktop.nix"
+    "${inputs.self}/common/optional/docker.nix"
+    "${inputs.self}/common/optional/steam.nix"
+    "${inputs.self}/common/optional/syncthing_base.nix"
+    "${inputs.self}/common/optional/systemd-boot.nix"
+    "${inputs.self}/common/optional/yubikey.nix"
+    "${inputs.self}/common/optional/zerotier.nix"
     ./hardware.nix
     ./llms.nix
     ./syncthing.nix

temp_flake.lock

@@ -1,258 +0,0 @@
-{
-  "nodes": {
-    "firefox-addons": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "dir": "pkgs/firefox-addons",
-        "lastModified": 1757649814,
-        "narHash": "sha256-VjtA+fqkraKHbGzjKJBPfDj+SXysXiR4SrghTr10HoY=",
-        "owner": "rycee",
-        "repo": "nur-expressions",
-        "rev": "789920825fc982a93a2bf91a714367fa8f7ea0a6",
-        "type": "gitlab"
-      },
-      "original": {
-        "dir": "pkgs/firefox-addons",
-        "owner": "rycee",
-        "repo": "nur-expressions",
-        "type": "gitlab"
-      }
-    },
-    "home-manager": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1757698511,
-        "narHash": "sha256-UqHHGydF/q3jfYXCpvYLA0TWtvByOp1NwOKCUjhYmPs=",
-        "owner": "nix-community",
-        "repo": "home-manager",
-        "rev": "a3fcc92180c7462082cd849498369591dfb20855",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "home-manager",
-        "type": "github"
-      }
-    },
-    "nixos-hardware": {
-      "locked": {
-        "lastModified": 1757103352,
-        "narHash": "sha256-PtT7ix43ss8PONJ1VJw3f6t2yAoGH+q462Sn8lrmWmk=",
-        "owner": "nixos",
-        "repo": "nixos-hardware",
-        "rev": "11b2a10c7be726321bb854403fdeec391e798bf0",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "master",
-        "repo": "nixos-hardware",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1757487488,
-        "narHash": "sha256-zwE/e7CuPJUWKdvvTCB7iunV4E/+G0lKfv4kk/5Izdg=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "ab0f3607a6c7486ea22229b92ed2d355f1482ee0",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs-master": {
-      "locked": {
-        "lastModified": 1757720853,
-        "narHash": "sha256-VBS5+YKIT8Aj81ZW+8Bg9MuYoI6OqO6HSrwG4dpHpW4=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "2ca437b4796d049192eb30576a50fef139038c09",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "master",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs-stable": {
-      "locked": {
-        "lastModified": 1735563628,
-        "narHash": "sha256-OnSAY7XDSx7CtDoqNh8jwVwh4xNL/2HaJxGjryLWzX8=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "b134951a4c9f3c995fd7be05f3243f8ecd65d798",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-24.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "pyproject-build-systems": {
-      "inputs": {
-        "nixpkgs": [
-          "system_tools",
-          "nixpkgs"
-        ],
-        "pyproject-nix": [
-          "system_tools",
-          "pyproject-nix"
-        ],
-        "uv2nix": [
-          "system_tools",
-          "uv2nix"
-        ]
-      },
-      "locked": {
-        "lastModified": 1744599653,
-        "narHash": "sha256-nysSwVVjG4hKoOjhjvE6U5lIKA8sEr1d1QzEfZsannU=",
-        "owner": "pyproject-nix",
-        "repo": "build-system-pkgs",
-        "rev": "7dba6dbc73120e15b558754c26024f6c93015dd7",
-        "type": "github"
-      },
-      "original": {
-        "owner": "pyproject-nix",
-        "repo": "build-system-pkgs",
-        "type": "github"
-      }
-    },
-    "pyproject-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "system_tools",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1746540146,
-        "narHash": "sha256-QxdHGNpbicIrw5t6U3x+ZxeY/7IEJ6lYbvsjXmcxFIM=",
-        "owner": "pyproject-nix",
-        "repo": "pyproject.nix",
-        "rev": "e09c10c24ebb955125fda449939bfba664c467fd",
-        "type": "github"
-      },
-      "original": {
-        "owner": "pyproject-nix",
-        "repo": "pyproject.nix",
-        "type": "github"
-      }
-    },
-    "root": {
-      "inputs": {
-        "firefox-addons": "firefox-addons",
-        "home-manager": "home-manager",
-        "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs",
-        "nixpkgs-master": "nixpkgs-master",
-        "nixpkgs-stable": "nixpkgs-stable",
-        "sops-nix": "sops-nix",
-        "system_tools": "system_tools",
-        "systems": "systems"
-      }
-    },
-    "sops-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1757503115,
-        "narHash": "sha256-S9F6bHUBh+CFEUalv/qxNImRapCxvSnOzWBUZgK1zDU=",
-        "owner": "Mic92",
-        "repo": "sops-nix",
-        "rev": "0bf793823386187dff101ee2a9d4ed26de8bbf8c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "Mic92",
-        "repo": "sops-nix",
-        "type": "github"
-      }
-    },
-    "system_tools": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "pyproject-build-systems": "pyproject-build-systems",
-        "pyproject-nix": "pyproject-nix",
-        "uv2nix": "uv2nix"
-      },
-      "locked": {
-        "lastModified": 1757910132,
-        "narHash": "sha256-6r45DD/tMN+hYgnMc2/c82Z0bb1A7FnI/nvU8kZf/Us=",
-        "owner": "RichieCahill",
-        "repo": "system_tools",
-        "rev": "d63c486fe3b76c24b2ed2fff33d6f54c847b50e8",
-        "type": "github"
-      },
-      "original": {
-        "owner": "RichieCahill",
-        "repo": "system_tools",
-        "type": "github"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1689347949,
-        "narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
-        "owner": "nix-systems",
-        "repo": "default-linux",
-        "rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default-linux",
-        "type": "github"
-      }
-    },
-    "uv2nix": {
-      "inputs": {
-        "nixpkgs": [
-          "system_tools",
-          "nixpkgs"
-        ],
-        "pyproject-nix": [
-          "system_tools",
-          "pyproject-nix"
-        ]
-      },
-      "locked": {
-        "lastModified": 1747441483,
-        "narHash": "sha256-W8BFXk5R0TuJcjIhcGoMpSOaIufGXpizK0pm+uTqynA=",
-        "owner": "pyproject-nix",
-        "repo": "uv2nix",
-        "rev": "582024dc64663e9f88d467c2f7f7b20d278349de",
-        "type": "github"
-      },
-      "original": {
-        "owner": "pyproject-nix",
-        "repo": "uv2nix",
-        "type": "github"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}

tests/test_databasse.py

@@ -0,0 +1,67 @@
+"""test_database."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+import pytest
+from sqlalchemy import Integer, String, create_engine, select
+from sqlalchemy.orm import DeclarativeBase, Mapped, Session, mapped_column, sessionmaker
+
+from python.database import safe_insert
+
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
+
+class TestingBase(DeclarativeBase):
+    """TestingBase."""
+
+
+class Item(TestingBase):
+    """Item."""
+
+    __tablename__ = "items"
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+    name: Mapped[str] = mapped_column(String(50), nullable=False, unique=True)
+
+
+@pytest.fixture
+def session() -> Generator[Session]:
+    """Fresh in-memory DB + tables for each test."""
+    engine = create_engine("sqlite+pysqlite:///:memory:", echo=False, future=True)
+    TestingBase.metadata.create_all(engine)
+    with sessionmaker(bind=engine, expire_on_commit=False, future=True)() as s:
+        yield s
+
+
+def test_partial_failure_unique_constraint(session: Session) -> None:
+    """Duplicate name should fail only for the conflicting row; others commit."""
+    objs = [Item(name="a"), Item(name="b"), Item(name="a"), Item(name="c")]
+    failures = safe_insert(objs, session)
+
+    assert len(failures) == 1
+    exc, failed_obj = failures[0]
+    assert isinstance(exc, Exception)
+    assert isinstance(failed_obj, Item)
+    assert failed_obj.name == "a"
+
+    rows = session.scalars(select(Item.name)).all()
+    assert sorted(rows) == ["a", "b", "c"]
+    assert rows.count("a") == 1
+
+
+def test_all_good_inserts(session: Session) -> None:
+    """No failures when all rows are valid."""
+    objs = [Item(name="x"), Item(name="y")]
+    failures = safe_insert(objs, session)
+    assert failures == []
+
+    rows = session.scalars(select(Item.name).where(Item.name.in_(("x", "y")))).all()
+    assert sorted(rows) == ["x", "y"]
+
+
+def test_unmapped_object_raises(session: Session) -> None:
+    """Non-ORM instances should raise TypeError immediately."""
+    with pytest.raises(TypeError):
+        safe_insert([object()], session)

users/elise/home/gui/default.nix

@@ -15,7 +15,6 @@
     # graphics tools
     gimp3
     xcursorgen
-    xf86_input_wacom
     # browser
     chromium
     firefox

users/elise/home/programs.nix

@@ -1,4 +1,4 @@
-{ pkgs, inputs, ... }:
+{ pkgs, ... }:
 {
   home.packages = with pkgs; [
     # cli

users/richie/home/gui/vscode/settings.json

@@ -88,5 +88,6 @@
   "redhat.telemetry.enabled": true,
   "gitlens.plusFeatures.enabled": false,
   // new
-  "hediet.vscode-drawio.resizeImages": null
+  "hediet.vscode-drawio.resizeImages": null,
+  "hediet.vscode-drawio.appearance": "automatic"
 }

users/richie/home/programs.nix

@@ -1,4 +1,4 @@
-{ pkgs, inputs, ... }:
+{ pkgs, ... }:
 {
   home.packages = with pkgs; [
     # cli
@@ -58,6 +58,5 @@
     nix-tree
     nixfmt-rfc-style
     treefmt
-    inputs.system_tools.packages.x86_64-linux.default
   ];
 }

users/richie/home/ssh_config.nix

@@ -43,12 +43,6 @@
         identityFile = "~/.ssh/id_ed25519";
         port = 922;
       };
-      leviathan = {
-        hostname = "192.168.90.127";
-        user = "richie";
-        identityFile = "~/.ssh/id_ed25519";
-        port = 332;
-      };
     };
   };
 }