Sync to minecraft launcher profiles

[mrjvs]

Being able to sync instances from the Modrinth app to the official minecraft launcher would be awesome.

What is the feature

• A toggle to sync to the official Minecraft launcher
• when syncing is enabled it would add a new profile to .minecraft/launcher_profiles.json.
• Changes to an instance would update the respective profile. Data that will need to be synced:
  • Java args
  • Icon
  • Name
  • Location of modrinth profile: com.modrinth.theseus/profiles/{instance_name}
  • Java installation location: com.modrinth.theseus\meta\java_versions

Why do you want the feature?

People who aren't very familiar with modding sometimes don't enjoy having to switch to a full new launcher.
Modrinth launcher is nice, but people who just want to try out a modpack for a world don't want to remake muscle memory of booting up the modrinth app.

Plus the modrinth app is not a fully featured replacement for the minecraft official launcher. It doesn't have features like managing realms or managing skins. So the argument cannot be made to just mentally remove the official launcher, it's still needed.

Footnotes

Having done some a bit of research, it's mostly as simple as updating the .minecraft/launcher_profiles.json file. However the version jars may be an issue, as it (afaik) cannot be set to a custom path, it needs to be in the .minecraft folder.

I'd be willing to try adding this myself, however I'm unsure how to handle the version jars, as mentioned above.