# Adding File Ignoring

While using this flake, it became obvious that there were a few things that were
still rough around the edges. In specific, we didn't add `/.direnv/` to the
`.gitignore` file sof if we weren't careful, we would be adding the entire
environment into the check-in.

The other was that some of the generated files (`DGO.md` in specific) would be
added via Nixago, then formatted as part of our `treefmt` call in `lefthook`,
then checked-in. As soon as someone went into the environment, Nixago would
notice that the file was different (because of formatting) and would regenerate
it, leading to an endless loop of generation/formatting.

In both cases, we needed the ability to add files to various ignore files
(`.gitignore` in the first case and `.prettierignore` in the second). The v0.1.0
check-in does that, and also avoids reformatting the license files along the
way.