Support installing unlisted modpacks

[willocn]

Is your suggested enhancement related to a problem? Please describe.

I currently maintain a modpack for a small server/community, which has little pertinence outside of this server. I would like the pack to be unlisted as to not confuse others. Right now, we distribute a .mrpack which they can install through the launcher of their choice, but the update process is confusing or sometimes not present across launchers.

Describe the solution you'd like

I would like to be able to use the Modrinth platform to distribute the unlisted modpack and instruct users to use the Modrinth launcher whenever possible, since packs can easily be updated through the launcher.

Describe alternatives you've considered

• Manual distribution of mrpack
  • Described above
• Launcher-specific distribution methods
  • Duplicates effort and often requires people to copy their settings files over

Additional context

No response