Caveats
Trust. Adding omniflake delegates the pinning of every indexed flake to this repository. Each pin carries a NAR hash, so a fetched tree matches what was pinned. Whether the pinned revision is a good one is not checked.
Names are API. Attribute names do not change once assigned. See Adding a flake.
Unification changes inputs. omniflake.flakes.<name> substitutes your
nixpkgs and four other inputs into every flake. That is usually what
modules and overlays need, and it is a configuration the flake's author did
not test. omniflake.pinned.<name> uses the author's lock instead. See
Unification.
Indexed flakes are not flake inputs. nix flake metadata lists five
inputs. --override-input cannot reach an indexed flake and
nix flake update does not advance one. Use omniflake.lib.load or
omniflake.lib.withOverrides to substitute inputs.
Computed locks. When a flake ships no flake.lock, or one that does not
match its flake.nix, the index stores the lock Nix computed at pin time.
Inputs written as a branch were resolved when the index was built.
pipe-operators. Some flake.nix files use the pipe operator. They are
pinned with that experimental feature enabled, and evaluating them requires
it as well.
Checks evaluate a sample. This repository's checks evaluate a fixed set of flakes and a random sample, not the whole index.