Concept for a recipe file for a kinda customizable Undertale mod patcher

recipe.jsonc

{
  // Behaviour of the auto-patcher is defined here
  // EVERYTHING HERE is subject to change
  // Always 1
  "APILevel": 1,
  "FriendlyName": "My Crappy Mod 2000"
  "BasedOn": {
    // 1 - Undertale, 2 - Deltarune SURVEY_PROGRAM (unsupported), 3 - Deltarune CH1&2
    // always 1 ATM
    "Game": 1,
    // The patcher has builtin patches to change the version to match the target
    // (limited to Mac/Linux DRM -> Windows DRM or Windows DRM-free -> Windows DRM ATM)
    "Variant": "Undertale.WindowsSteamDRM",
    // Only 1.08 and up are supported
    // 1 - 1.08; 2 - 1.09~1.11, upgrade to GMS2 only; 3 - 1.11, full upgrade (unsupported)
    "GameVersion": 2
  },
  "Patches": [
    {
      "Name": "Core",
      // inherits default friendly name and description from the patcher defaults
      /*"Required": true,
      "CopyFiles": {
        // file : dest
      },
      "CopyFilesBranchOnTarget": {
        // target : { file : dest }
        // "All": {},
      },
      "PatchFiles": {
        // src : patch
        // src supports wildcards
        // start path with $ to grab a string from Assets
        "game.data": "$Binaries.Mod.Patch"
      }*/
    },
    {
      "Name": "BetterMegalovania",
      "FriendlyName": "Better MEGALOVANIA",
      "Description": "Replaces the song of the funny bone man's fight.",
      "CopyFiles": {
        "Better ost/mus_zz_megalovania.ogg": "mus_zz_megalovania.ogg"
      },
      "DeleteFiles": [
        "mus_churchbell.ogg"
      ]
    }
  ],
  // Customize stuff in the patcher and localize strings defined in other parts of this recipe here
  // This is the language that this recipe is designed for
  "TextLanguage": "en",
  "Strings": {
    // language : { string key : string value }
    // Having a language in this list will cause it to appear during initialization, even if there is no strings for the language
    "zh_Hans": {
      "Mod.FriendlyName": "垃圾模组2000",
      "Mod.Patches.BetterMegalovania.FriendlyName": "改进 MEGALOVANIA",
      "Mod.Patches.BetterMegalovania.Description": "更改骷髅男战斗的音乐。"
    }
  },
  "Assets": {
    // type : { "resource key" : replacement }
    // Use paths relative to location of recipe unless specified otherwise
    "Graphics": {
      // Use png files (ideally)
      "Wizard.SidebarImage": "Setup wizard images/sidebar.png",
      "Wizard.StepTitleBarImage": "Setup wizard images/title bar.png"
    },
    "Binaries": {
      // Use this to rename built-in patch filenames
      // Tip: you can remove files that are not used in your recipe
      "Mod.Patch": "mod.xdelta",
      "VersionUpdating.Undertale.GMS2Runner.Windows": "PLEASE_RUN_PATCHER.exe",
      // Require the user to download SP
      "VersionUpdating.Undertale.GMS2Runner.MacOS": null,
      "VersionUpdating.Undertale.GMS2Runner.Linux.DownloadURL": "h",
      "VersionUpdating.Undertale.GMS2Runner.Linux.Icon": "mod icon.png"
    }
  },
  // Stuff that has defaults not included here
  "TargetDeterminationConditions": [
    // Attempt to conclude what is the kind of the game we are patching with a few conditions
    // Every dictionary in this array contains such conditions and is called a set, if one of the conditions in a set hits, the patcher proceeds to the next set
    // In every set one of the conditions with ShouldMatch should hit, otherwise the patching operation will be terminated
    // The patcher already has presets for all builtin targets:
    // "All", "Windows", "Linux", "MacOS", "Undertale.LinuxSteamDRM", "Undertale.MacOSSteamDRM", "Undertale.WindowsSteamDRM" and "Undertale.WindowsDRMFree"
    // You can add extra conditions for those keys if needed
    // { target name : { conditions } }
  ],
  "BaseDirectory": {
    // One for each target, you can use .. until the true root directory of the game is reached
    // The patcher already has presets for all builtin targets
    // You can replace the defaults by using those keys if needed
    // target : directory
  },
  "DestinationFilenameAliases": {
    // We pretend that a file exists, and when the patch operation require one of these files, operate on the first existing file in the value array instead
    // The spoof filename would ideally be a nonexisting file
    // The patcher has a default "game.data" that for example leads to data.win for the Windows target
    // spoof file name : [ redirect file names ]
  },
}