To patch the package metadata in the `repodata.json` files for the different architectures (for example, the [`noarch` folder has this `repodata.json`](https://conda.anaconda.org/bioconda/noarch/)), the following steps are required (on a dedicated branch):

1. Edit `gen_patch_json.py`, adding or adjusting repodata patches in the `_gen_new_index_per_key()` function.
2. Run `gen_patch_json.py` locally, to see which patches get generated in the `patches/<architecture>/patch_instructions.json` files.
3. Compare the newly generated patches to the existing patches with `show_diff.py`, and double-check that the modifications work as intended or update accordingly.
4. Commit all the changes to `gen_patch_json.py` (do not commit the `patches/` folder).
5. Also update and commit the `meta.yaml` recipe definition for the `bioconda-repodata-patches` package by updating the `version` to the current date and resetting the build number to `0` (if necessary).
