Mango
Mango is a self-hosted manga server and web reader
...On amd64 Linux, Mango can be deployed with a single binary that includes all the dependencies and static files. Upgrading to a new version is as easy as replacing the binary with a new one. Mango is written in Crystal, a compiled language that offers C-level performance and a safe type system. Thanks to this, Mango uses very little CPU and RAM resources. The web pages served by Mango are mostly rendered on the backend to make the web interface more responsive. Mango has a long list of configuration options while offering sane default values to them. Mango has a built-in MangaDex downloader, but you can easily install official or third-party plugins to download from other sites.