Is there a way to have the running process auto refresh on code change in IntelliJ?

[neat jacinth]

run the game in debug mode, build the code

[pseudo summit]

wdym build the code

[neat jacinth]

"Build" --> "Build Project"

menu item

[pseudo summit]

is it possible to reload the mod's classes without building again?

[neat jacinth]

no, how would that even work?

you need to recompile

[pseudo summit]

ok

[patent delta]

Theres a shortcut for it, like Fn+9 or something

[magic jackal]

The hammer icon on the upper right corner will do. Also, https://docs.fabricmc.net/develop/getting-started/launching-the-game#hotswapping-classes

[woeful violet]

You can also right click in the file you're changing and choose "Compile And Reload File" (caveat the limitations in the above link). I do this all the time when I'm tweaking things.