How can one generate this?

[embeddedt]

Hello! Would you consider publishing the scripts you used to create these (even if they are messy)? I am not sure of the legality of redistributing MCP mappings in this way so it would be useful to have a way to generate the mappings locally.

[BleachDev]

Not sure where i would upload it but here's the script i used: mapping-bridge.zip

That takes the MCP files and the Legacy Fabric intermediary-v2 of the version you want and generates two tiny files with the new mappings.
Then i downloaded Legacy Yarn, deleted the existing mappings there and opened enigma then imported the tiny-v2 file, clicked the "Drop bad mappings" option and exported it as usable yarn jars.