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+From b30b9eed670d9f02eccb1120f18cbf084caf32f0 Mon Sep 17 00:00:00 2001
+From: Benedikt Peetz <benedikt.peetz@b-peetz.de>
+Date: Mon, 2 Nov 2026 19:56:15 +0100
+Subject: [PATCH 6/7] lib: Merge with the `extraLib`
+
+---
+ lib/default.nix | 126 ------------------------------------------------
+ 1 file changed, 126 deletions(-)
+ delete mode 100644 lib/default.nix
+
+diff --git a/lib/default.nix b/lib/default.nix
+deleted file mode 100644
+index 1cdbf936..00000000
+--- a/lib/default.nix
++++ /dev/null
+@@ -1,126 +0,0 @@
+-# nixos-config - My current NixOS configuration
+-#
+-# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
+-# SPDX-License-Identifier: GPL-3.0-or-later
+-#
+-# This file is part of my nixos-config.
+-#
+-# You should have received a copy of the License along with this program.
+-# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
+-{lib}: rec {
+-  /*
+-  Converts `number` from a binary number to a decimal one.
+-
+-  The input is indented to be a number composed only of `1`s and `0` (e.g., 10010.)
+-
+-  # Type
+-
+-  binaryToDecimal :: Int -> Int
+-
+-  # Arguments
+-
+-  number
+-  : The sequence of `1`s and `0`s defining a binary number, in little endian.
+-
+-  # Examples
+-
+-  binaryToDecimal 1001
+-  => 9
+-  */
+-  binaryToDecimal = number: let
+-    binaryList =
+-      builtins.map lib.strings.toInt (lib.lists.reverseList (lib.strings.stringToCharacters (builtins.toString number)));
+-  in
+-    builtins.foldl' (acc: num: acc + num) 0
+-    (lib.lists.imap0 (index: elem: elem * (pow 2 index)) binaryList);
+-
+-  /*
+-  Converts `string` to a (probably) unique numerical id.
+-
+-  This is achieved by hashing the string and returning the first six hex-digits
+-  converted to a base 10 number.
+-
+-  # Type
+-
+-  idFromString :: String -> Int
+-
+-  # Arguments
+-
+-  string
+-  : The string to use as seed for the id generation.
+-
+-  # Examples
+-
+-  idFromString "3d-printer"
+-  => 10365713
+-  */
+-  idFromString = string: let
+-    inputSeed =
+-      builtins.concatStringsSep ""
+-      (lib.lists.take 6
+-        (lib.strings.stringToCharacters (builtins.hashString "sha256" string)));
+-  in
+-    lib.trivial.fromHexString inputSeed;
+-
+-  /*
+-  source: https://github.com/NixOS/nix/issues/10387#issuecomment-2494597690
+-
+-  Raises the `base` to the power of `power`.
+-
+-  Considering the small input size and the lack of a built-in power function [2],
+-  this naive power implementation should satisfy reasonable performance
+-  requirements.
+-
+-  Due to the lack of a modulo and bitwise AND operator, it is questionable whether
+-  the recursive exponentiation by squaring [1] implementation would even be
+-  faster.
+-
+-  [1]: https://en.wikipedia.org/wiki/Exponentiation_by_squaring
+-  [2]: https://github.com/NixOS/nix/issues/10387
+-
+-  # Type
+-
+-  pow :: Number -> Number -> Number
+-
+-  # Arguments
+-
+-  base
+-  : The base number to be raised.
+-
+-  power
+-  : The exponent to raise `base` to.
+-
+-  # Examples
+-
+-  pow 2 5
+-  => 32
+-  */
+-  pow = base: power:
+-    if power == 0
+-    then 1
+-    else if power > 0
+-    then (base * (pow base (power - 1)))
+-    else builtins.throw "Negative powers are not supported";
+-
+-  options = {
+-    /*
+-    Generate an enable option definition, that defaults to true.
+-
+-    This conveniently allows the composition of a “common” module set.
+-
+-    # Type
+-
+-    mkEnable :: String -> AttrSet
+-
+-    # Arguments
+-
+-    name
+-    : The name to use in the option description.
+-    */
+-    mkEnable = name:
+-      (lib.mkEnableOption name)
+-      // {
+-        default = true;
+-      };
+-  };
+-}
+-- 
+2.55.0
+