TL;DR: Two of the most nicest, most technically proficient people you know just got burnt out from contributing to their operating system and this is just another example of NixOS being poorly maintained.
A year since I divested from NixOS and nothing really has changed. The "flakes" design is still a garbage abstraction invented by a neo-nazi to sell to Peter Thiel and Co. The Nix language has not evolved in any meaningful way (nixpkgs is still the load bearing peg).
Nixpkgs has reached over 1 million commits and is pushing what Git can scale to and is now entirely dependent on a Microsoft GitHub enterprise subscription and a Amazon AWS S3 credits for petabytes of CI/CD.
The community still contains active MIC fascists in leadership roles alongside :vote
Europeans. empoc perspectives are treated as community fracturing.
The nix derivations abstractions has not truly caught on (due to it not even being better than containers resource wise) and flakes only makes this worse with unversioned commit hashes serving as "determinism" and "reproducibility" which have become buzzwords at this point.
I only expect this to get worse and worse as Determinate Systems (MIC ghoul company) takes over and nixpkgs collapses as an independent entity.
BTW they haven't decided on a AI/LLM policy because the steering committee and the nixpkgs core team can't agree or communicate on anything, which basically means NixOS is going to be a AI hype train project if you enjoy that.
Mint is in a situation where they are drowning in technical debt rather than operating expenses (their Cinnamon desktop environment falling chronically behind upstream GTK technologies), but it is a similar situation in terms of the whole raison d'être of the distribution facing an existential crisis.