commit f743cc4e8ef6f88d77f6069c453d404da7b8c65e · dunkirk.sh/aoc-2025

.gitignore

···

       32
        
       

     

       33
        
       # Finder (MacOS) folder config

     

       34
        
       .DS_Store

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0

···

       32
        
       

     

       33
        
       # Finder (MacOS) folder config

     

       34
        
       .DS_Store

     

       35
       +
       

     

       36
       +
       # nix

     

       37
       +
       .direnv

     

       38
       +
       .envrc

+14 -2

README.md

···

       1
        
       # Advent of Code 2025 - Kieran's way

     

       2
        
       

     

       0
        
       
     

       0
        
       
     

       3
        
       This contains my solutions to advent of code 2025 in mostly `ts` or `nix` depending on how lazy I'm feeling that day.

     

       4
        
       

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       5
        
       ```bash

     

       6
       -
       bun run index.ts

     

       7
       -
       nix-instantiate --eval --strict solution.nix

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       8
        
       ```

     

       9
        
       

     

       10
        
       The main repo is [the tangled repo](https://tangled.org/dunkirk.sh/aoc-2025) and the github is just a mirror.

···

       1
        
       # Advent of Code 2025 - Kieran's way

     

       2
        
       

     

       3
       +
       ![made with vhs](https://vhs.charm.sh/vhs-4Iru9nKzVVROVumbtUEW20.gif)

     

       4
       +
       

     

       5
        
       This contains my solutions to advent of code 2025 in mostly `ts` or `nix` depending on how lazy I'm feeling that day.

     

       6
        
       

     

       7
       +
       ## Running Solutions

     

       8
       +
       

     

       9
       +
       Either you can run the days manually or you can use direnv and the `aoc` tui I made!

     

       10
       +
       

     

       11
        
       ```bash

     

       12
       +
       echo "use flake" >> .envrc && direnv allow

     

       13
       +
       ```

     

       14
       +
       

     

       15
       +
       the rather boring manual way:

     

       16
       +
       

     

       17
       +
       ```bash

     

       18
       +
       cd ts/01 && bun run index.ts

     

       19
       +
       nix-instantiate --eval --strict nix/01/solution.nix

     

       20
        
       ```

     

       21
        
       

     

       22
        
       The main repo is [the tangled repo](https://tangled.org/dunkirk.sh/aoc-2025) and the github is just a mirror.

+15

demo.tape

···

       1
       +
       Output demo.gif

     

       2
       +
       

     

       3
       +
       Set FontSize 14

     

       4
       +
       Set Width 600

     

       5
       +
       Set Height 500

     

       6
       +
       Set Theme "Catppuccin Mocha"

     

       7
       +
       

     

       8
       +
       Type "aoc"

     

       9
       +
       Enter

     

       10
       +
       Sleep 3s

     

       11
       +
       

     

       12
       +
       # Choose "Run all solutions"

     

       13
       +
       Down

     

       14
       +
       Enter

     

       15
       +
       Sleep 5s

+61

flake.lock

···

       1
       +
       {

     

       2
       +
         "nodes": {

     

       3
       +
           "flake-utils": {

     

       4
       +
             "inputs": {

     

       5
       +
               "systems": "systems"

     

       6
       +
             },

     

       7
       +
             "locked": {

     

       8
       +
               "lastModified": 1731533236,

     

       9
       +
               "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",

     

       10
       +
               "owner": "numtide",

     

       11
       +
               "repo": "flake-utils",

     

       12
       +
               "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",

     

       13
       +
               "type": "github"

     

       14
       +
             },

     

       15
       +
             "original": {

     

       16
       +
               "owner": "numtide",

     

       17
       +
               "repo": "flake-utils",

     

       18
       +
               "type": "github"

     

       19
       +
             }

     

       20
       +
           },

     

       21
       +
           "nixpkgs": {

     

       22
       +
             "locked": {

     

       23
       +
               "lastModified": 1764517877,

     

       24
       +
               "narHash": "sha256-pp3uT4hHijIC8JUK5MEqeAWmParJrgBVzHLNfJDZxg4=",

     

       25
       +
               "owner": "NixOS",

     

       26
       +
               "repo": "nixpkgs",

     

       27
       +
               "rev": "2d293cbfa5a793b4c50d17c05ef9e385b90edf6c",

     

       28
       +
               "type": "github"

     

       29
       +
             },

     

       30
       +
             "original": {

     

       31
       +
               "owner": "NixOS",

     

       32
       +
               "ref": "nixos-unstable",

     

       33
       +
               "repo": "nixpkgs",

     

       34
       +
               "type": "github"

     

       35
       +
             }

     

       36
       +
           },

     

       37
       +
           "root": {

     

       38
       +
             "inputs": {

     

       39
       +
               "flake-utils": "flake-utils",

     

       40
       +
               "nixpkgs": "nixpkgs"

     

       41
       +
             }

     

       42
       +
           },

     

       43
       +
           "systems": {

     

       44
       +
             "locked": {

     

       45
       +
               "lastModified": 1681028828,

     

       46
       +
               "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",

     

       47
       +
               "owner": "nix-systems",

     

       48
       +
               "repo": "default",

     

       49
       +
               "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",

     

       50
       +
               "type": "github"

     

       51
       +
             },

     

       52
       +
             "original": {

     

       53
       +
               "owner": "nix-systems",

     

       54
       +
               "repo": "default",

     

       55
       +
               "type": "github"

     

       56
       +
             }

     

       57
       +
           }

     

       58
       +
         },

     

       59
       +
         "root": "root",

     

       60
       +
         "version": 7

     

       61
       +
       }

+184

flake.nix

···

       1
       +
       {

     

       2
       +
         description = "Advent of Code 2025 Solutions";

     

       3
       +
       

     

       4
       +
         inputs = {

     

       5
       +
           nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

     

       6
       +
           flake-utils.url = "github:numtide/flake-utils";

     

       7
       +
         };

     

       8
       +
       

     

       9
       +
         outputs = { self, nixpkgs, flake-utils }:

     

       10
       +
           flake-utils.lib.eachDefaultSystem (system:

     

       11
       +
             let

     

       12
       +
               pkgs = nixpkgs.legacyPackages.${system};

     

       13
       +
               gum = pkgs.gum;

     

       14
       +
               

     

       15
       +
               # Get list of available days

     

       16
       +
               getDays = ''

     

       17
       +
                 days=()

     

       18
       +
                 for dir in ts/* nix/*; do

     

       19
       +
                   if [ -d "$dir" ]; then

     

       20
       +
                     day=$(basename "$dir")

     

       21
       +
                     if [[ ! " ''${days[@]} " =~ " ''${day} " ]]; then

     

       22
       +
                       days+=("$day")

     

       23
       +
                     fi

     

       24
       +
                   fi

     

       25
       +
                 done

     

       26
       +
                 echo "''${days[@]}" | tr ' ' '\n' | sort

     

       27
       +
               '';

     

       28
       +
               

     

       29
       +
               # Run a specific day's solution

     

       30
       +
               runDay = day: lang: ''

     

       31
       +
                 if [ "$lang" = "ts" ] && [ -f "ts/${day}/index.ts" ]; then

     

       32
       +
                   ${gum}/bin/gum style --border rounded --border-foreground 212 --padding "0 1" --margin "1 0" "Day ${day} (TypeScript)"

     

       33
       +
                   (cd ts/${day} && ${pkgs.bun}/bin/bun run index.ts)

     

       34
       +
                 elif [ "$lang" = "nix" ] && [ -f "nix/${day}/solution.nix" ]; then

     

       35
       +
                   ${gum}/bin/gum style --border rounded --border-foreground 212 --padding "0 1" --margin "1 0" "Day ${day} (Nix)"

     

       36
       +
                   result=$(${pkgs.nix}/bin/nix-instantiate --eval --strict --json nix/${day}/solution.nix)

     

       37
       +
                   part1=$(echo "$result" | ${pkgs.jq}/bin/jq -r '.part1')

     

       38
       +
                   part2=$(echo "$result" | ${pkgs.jq}/bin/jq -r '.part2')

     

       39
       +
                   echo "part 1: $part1"

     

       40
       +
                   echo "part 2: $part2"

     

       41
       +
                 fi

     

       42
       +
               '';

     

       43
       +
               

     

       44
       +
               # Interactive runner with gum

     

       45
       +
               runner = pkgs.writeShellScriptBin "aoc" ''

     

       46
       +
                 set -e

     

       47
       +
                 

     

       48
       +
                 ${gum}/bin/gum style \

     

       49
       +
                   --border double \

     

       50
       +
                   --border-foreground 212 \

     

       51
       +
                   --padding "1 2" \

     

       52
       +
                   --margin "1 0" \

     

       53
       +
                   "$(${gum}/bin/gum style --foreground 212 '🎄 Advent of Code 2025 🎄')"

     

       54
       +
                 

     

       55
       +
                 # Choose action

     

       56
       +
                 action=$(${gum}/bin/gum choose "Run specific day" "Run all solutions" "Exit")

     

       57
       +
                 

     

       58
       +
                 case "$action" in

     

       59
       +
                   "Run specific day")

     

       60
       +
                     # Get available days

     

       61
       +
                     days=$(${getDays})

     

       62
       +
                     

     

       63
       +
                     if [ -z "$days" ]; then

     

       64
       +
                       ${gum}/bin/gum style --foreground 196 "No solutions found!"

     

       65
       +
                       exit 1

     

       66
       +
                     fi

     

       67
       +
                     

     

       68
       +
                     day=$(echo "$days" | ${gum}/bin/gum choose)

     

       69
       +
                     

     

       70
       +
                     # Check what languages are available for this day

     

       71
       +
                     langs=()

     

       72
       +
                     [ -f "ts/$day/index.ts" ] && langs+=("TypeScript")

     

       73
       +
                     [ -f "nix/$day/solution.nix" ] && langs+=("Nix")

     

       74
       +
                     langs+=("Both")

     

       75
       +
                     

     

       76
       +
                     lang=$(printf '%s\n' "''${langs[@]}" | ${gum}/bin/gum choose)

     

       77
       +
                     

     

       78
       +
                     echo ""

     

       79
       +
                     case "$lang" in

     

       80
       +
                       "TypeScript")

     

       81
       +
                         if [ -f "ts/$day/index.ts" ]; then

     

       82
       +
                           ${gum}/bin/gum style --border rounded --border-foreground 212 --padding "0 1" "Day $day"

     

       83
       +
                           echo ""

     

       84
       +
                           ${gum}/bin/gum style --foreground 212 "TypeScript:"

     

       85
       +
                           (cd ts/$day && ${pkgs.bun}/bin/bun run index.ts)

     

       86
       +
                         fi

     

       87
       +
                         ;;

     

       88
       +
                       "Nix")

     

       89
       +
                         if [ -f "nix/$day/solution.nix" ]; then

     

       90
       +
                           ${gum}/bin/gum style --border rounded --border-foreground 212 --padding "0 1" "Day $day"

     

       91
       +
                           echo ""

     

       92
       +
                           ${gum}/bin/gum style --foreground 212 "Nix:"

     

       93
       +
                           result=$(${pkgs.nix}/bin/nix-instantiate --eval --strict --json nix/$day/solution.nix)

     

       94
       +
                           echo "$result" | ${pkgs.jq}/bin/jq -r 'to_entries | .[] | "\(.key): \(.value)"'

     

       95
       +
                         fi

     

       96
       +
                         ;;

     

       97
       +
                       "Both")

     

       98
       +
                         ${gum}/bin/gum style --border rounded --border-foreground 212 --padding "0 1" "Day $day"

     

       99
       +
                         echo ""

     

       100
       +
                         if [ -f "ts/$day/index.ts" ]; then

     

       101
       +
                           ${gum}/bin/gum style --foreground 212 "TypeScript:"

     

       102
       +
                           (cd ts/$day && ${pkgs.bun}/bin/bun run index.ts)

     

       103
       +
                           echo ""

     

       104
       +
                         fi

     

       105
       +
                         if [ -f "nix/$day/solution.nix" ]; then

     

       106
       +
                           ${gum}/bin/gum style --foreground 212 "Nix:"

     

       107
       +
                           result=$(${pkgs.nix}/bin/nix-instantiate --eval --strict --json nix/$day/solution.nix)

     

       108
       +
                           echo "$result" | ${pkgs.jq}/bin/jq -r 'to_entries | .[] | "\(.key): \(.value)"'

     

       109
       +
                         fi

     

       110
       +
                         ;;

     

       111
       +
                     esac

     

       112
       +
                     ;;

     

       113
       +
                     

     

       114
       +
                   "Run all solutions")

     

       115
       +
                     # Collect all unique days

     

       116
       +
                     all_days=()

     

       117
       +
                     for dir in ts/* nix/*; do

     

       118
       +
                       if [ -d "$dir" ]; then

     

       119
       +
                         day=$(basename "$dir")

     

       120
       +
                         if [[ ! " ''${all_days[@]} " =~ " ''${day} " ]]; then

     

       121
       +
                           all_days+=("$day")

     

       122
       +
                         fi

     

       123
       +
                       fi

     

       124
       +
                     done

     

       125
       +
                     

     

       126
       +
                     # Sort and run each day

     

       127
       +
                     for daynum in $(printf '%s\n' "''${all_days[@]}" | sort); do

     

       128
       +
                       ${gum}/bin/gum style --border rounded --border-foreground 212 --padding "0 1" "Day $daynum"

     

       129
       +
                       echo ""

     

       130
       +
                       

     

       131
       +
                       if [ -f "ts/$daynum/index.ts" ]; then

     

       132
       +
                         ${gum}/bin/gum style --foreground 212 "TypeScript:"

     

       133
       +
                         (cd ts/$daynum && ${pkgs.bun}/bin/bun run index.ts)

     

       134
       +
                         echo ""

     

       135
       +
                       fi

     

       136
       +
                       

     

       137
       +
                       if [ -f "nix/$daynum/solution.nix" ]; then

     

       138
       +
                         ${gum}/bin/gum style --foreground 212 "Nix:"

     

       139
       +
                         result=$(${pkgs.nix}/bin/nix-instantiate --eval --strict --json nix/$daynum/solution.nix)

     

       140
       +
                         echo "$result" | ${pkgs.jq}/bin/jq -r 'to_entries | .[] | "\(.key): \(.value)"'

     

       141
       +
                         echo ""

     

       142
       +
                       fi

     

       143
       +
                     done

     

       144
       +
                     ;;

     

       145
       +
                     

     

       146
       +
                   "Exit")

     

       147
       +
                     ${gum}/bin/gum style --foreground 212 "Happy coding! 🎅"

     

       148
       +
                     exit 0

     

       149
       +
                     ;;

     

       150
       +
                 esac

     

       151
       +
               '';

     

       152
       +
               

     

       153
       +
             in {

     

       154
       +
               # Development shell with all tools

     

       155
       +
               devShells.default = pkgs.mkShell {

     

       156
       +
                 packages = with pkgs; [

     

       157
       +
                   bun

     

       158
       +
                   jq

     

       159
       +
                   gum

     

       160
       +
                   runner

     

       161
       +
                 ];

     

       162
       +
                 

     

       163
       +
                 shellHook = ''

     

       164
       +
                   ${gum}/bin/gum style --foreground 212 "🎄 Advent of Code 2025 🎄"

     

       165
       +
                   echo ""

     

       166
       +
                   ${gum}/bin/gum style "Run 'aoc' to start the interactive runner"

     

       167
       +
                 '';

     

       168
       +
               };

     

       169
       +
               

     

       170
       +
               # Packages

     

       171
       +
               packages = {

     

       172
       +
                 default = runner;

     

       173
       +
               };

     

       174
       +
               

     

       175
       +
               # Apps

     

       176
       +
               apps = {

     

       177
       +
                 default = {

     

       178
       +
                   type = "app";

     

       179
       +
                   program = "${runner}/bin/aoc";

     

       180
       +
                 };

     

       181
       +
               };

     

       182
       +
             }

     

       183
       +
           );

     

       184
       +
       }