#JoininBox v0.7.7 has a new option to use a custom change address when sending with or without a coinjoin
Existing features:
- one click install of #JoinMarket v0.9.9
- can start a pruned node within minutes
- signet option
- OS images for RPi and amd64 (bare metal or VM)
Link to the project: https://github.com/openoms/joininbox
It is also a part #Raspiblitz: https://github.com/rootzoll/raspiblitz/
General guidance about using JoinMarket: https://github.com/openoms/bitcoin-tutorials/blob/master/joinmarket/joinmarket_private_flow.md

