nix flake refactor: avoid with lib; & use lib.optional*
#2302
| Job | Run time |
|---|---|
| 1m 23s | |
| 1m 17s | |
| 1m 9s | |
| 1m 1s | |
| 1m 16s | |
| 1m 30s | |
| 44s | |
| 1m 36s | |
| 1m 39s | |
| 11m 35s |
with lib; & use lib.optional*
#2302
| Job | Run time |
|---|---|
| 1m 23s | |
| 1m 17s | |
| 1m 9s | |
| 1m 1s | |
| 1m 16s | |
| 1m 30s | |
| 44s | |
| 1m 36s | |
| 1m 39s | |
| 11m 35s |