Sunrust is now fully open to the public on 1.20.x, with both Survival and Creative available. It started out in beta, but the server has officially launched and is ready for players who want a more classic Minecraft feel with a few extra systems on top.
For Survival, you can get going with /kit spawn for starter items and a handy command guide. Resource packs are enabled, and players can claim land too, starting with 16 chunks and earning one chunk per hour. Sunrust also adds custom terrain, dungeons, enchantments, and land claiming to keep the world feeling fresh.
If Creative is more your thing, just use /creative to hop over to the plot world. The creative side includes tools like PlotsSquared, FastAsyncWorldEdit, goBrush, goPaint, VoxelSniper, HeadDatabase, and Arceon, so builders have plenty to work with.