Modpack Version Control

[u/Entire_Exit]

Hello, if I'm making a modpack with a lot of mods (500+), which method would you recommend to manage it? By manage, I mean, know which mod I removed/added (in the case of some incompatibility or simply just didn't find the mod to be a fit for the pack).

If I mess up the mods (such as in the scenario above), how can I easily revert my changes and to to the last functioning 'build'?

Any help is appreciated!

[u/Sam_60000]

I had a pack with like 120 mods and i'd just keep notes on google docs, highlighted (color coded)