update nixpkgs to aaf1c72f8364878625c02ff9d501bd475c9180df
fix build-computer-configs failure
update nixpkgs to 9484f487c6e9125519eff06b4b5936c9eead1523
update nixpkgs to 4dc2c6d414441d70669b333f18e7b17d77ca0b3b