Here is some unsolicited advice on clarity.
Pick one or two descriptive phrases per subject. If you need more sentences, that's okay.
For example:
> Octelium, as described more in detail in the repo's README, is simply an open source, self-hosted, unified platform for zero trust resource access that is primarily meant to be a modern alternative to corporate VPNs and remote access tools.
->
"At its core, Octelium is a modern alternative to VPNs. Unlike traditional VPNs, it assumes a zero trust security model. Octelium is open source and built to be self-hosted. The README describes many other use cases and features."