NEC-TM may become the standard translation memory server for translate5, since it is docker-based, runs under Linux and is a modern server based on the big data technology stack ElasticSearch.
NEC-TM has only a basic Admin-Interface, but no translation interface. It is designed to serve as a TM-engine via API access for other servers and thus is a perfect match for translate5. Optionally the same TM on NEC-TM can be accessed through translate5 and other CAT-tools.
More information about NEC-TM you find at https://www.nec-tm.eu/
Installation under Ubuntu 18.04
Install docker as outlined here:
Create NEC-TM directory
This will run a while
Run NEC-TM for the first time
The "restart" part of the command will ensure, that docker automatically restarts NEC-TM in case of system reboot or failures.
Configure translate5 for usage of NEC-TM as Translation Memory resource
Configure NEC-TM for usage by translate5
See the instructions here at the bottom of the page