If looking to put in the work while also leveling up in programming since you have some basic experience already, NixOS/Guix should be on your shortlist.
Both have programmatic, declarative configuration instead of a mangle of configuration files that tend to break with entropy as software developers update config files & it’s very easy to miss a broken build until you restart (I remember when PAM had an update & a lot of folks, including myself, panicked as they could no longer log into their machines). Since these config files are tied to versions of software, such issues are much rarer, & with stateless config you get rollbacks to previous working versions for free. Both ship with a powerful package manager that can replace bad programming language package management & tools with overhead like Docker.
The biggest downside is having to learn Nix (language) or Guile Scheme to be able to script your config, but once you get the hang of it, it’s hard to feel confident in any stateful system & you learned valuable skills for package management.