There is only MongoDB raw database files at each WeKan grain, similar to SQLite. MongoDB 3 server version is same for every grain.
In progress is adding SQLite support to WeKan.
Using Caddy 2 at front, I host Sandstorm, many WeKan Snap and RocketChat at same server. Sandstorm has many websites, etc software in use. At Sandstorm, only those grains are running and use RAM where is logged in user, this is much more efficient that Docker or Snap where container is running all the time.
https://github.com/wekan/wekan/blob/main/docs/Platforms/FOSS...
https://github.com/wekan/wekan/wiki/Sandstorm
https://github.com/wekan/wekan/wiki/Caddy-Webserver-Config
There is also development towards next version of Sandstorm, that is Tempest:
- https://sandstorm.org/news/2023-10-23-sandstorm-tempest-and-...