I have tested S3 but i only have Lolin S3 , the way it worked every time is that the initial flashing is done via esptool as detailed in discord by this post ( just look for softhack posts in beta-testing channel if you cant access the link ) Discord
After that used this site https://wled-compile.github.io/ to compile on github and tested usermods and OTA worked ( most of the time ) . At the moment using audio and animatrix usermods and it is stable but still not as good as a normal esp32 but i guess that would change in the future
