Client/Server metadata/tag

[Seth0067]

Is your feature request related to a problem? Please describe.
Will there be a better solution for designating client/server mods?

Problem statement should be: as a user, I need a way to browse client only or server only mods so that I can, say, modify my vanilla game for public servers OR remove unnecessary client mods from my modpack server pack. My suggestion as a possible solution again might be a gating project creation step to choose one or the other (or both).

Describe the solution you'd like
a custom, searchable tag that (as best possible) precisely describe server/client functionality:
client mod
server mod
client + server required
and possibly
partial functionality on either client/server side

Describe alternatives you've considered
none

Additional context
LMK if any needed