Because Epesi BIM is very small and lightweight it needs very little resources and it is very fast and responsive even using old computers.
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You can run Epesi on Raspberry Pi Zero with only 1 CPU and 512 MB of RAM.
Epesi CRM on LLMP stack:
Ready to use USB/SD Card OS image can be freely downloaded and modified. Tested on RPi Zero and RPi 3. Visit RasPiEsi project on GitHub for details https://github.com/jtylek/RasPiEsi
Photo shows a custom configured Raspberry Pi Zero running Epesi utilizing as little as 133 MB of RAM