By: Michael Lynch <git@mtlynch.io>
Use separate nixpkgs input for ffmpeg Upgrade the default nixpkgs input to nixos-26.05 while keeping ffmpeg pinned to the previous nixos-24.05 package set through a dedicated ffmpeg-nixpkgs input.
| Time to Start | Worker time | Duration | Time to finish | |
| Config | 0s | 11s | 11s | 11s |
| Eval | 9s | 37s | 37s | 46s |
| Build | 25s | 7m09s | 1m24s | 1m49s |
| Suite | 0s | 7m58s | 1m49s | 1m49s |