···11111212## Submitting changes
13131414+Read the ["Submitting changes"](https://nixos.org/nixpkgs/manual/#chap-submitting-changes) section of the nixpkgs manual. It explains how to write, test, and iterate on your change, and which branch to base your pull request against.
1515+1616+Below is a short excerpt of some points in there:
1717+1418* Format the commit messages in the following way:
15191620 ```
···4044 * If there is no upstream license, `meta.license` should default to `lib.licenses.unfree`.
4145* `meta.maintainers` must be set.
42464343-See the nixpkgs manual for more details on [standard meta-attributes](https://nixos.org/nixpkgs/manual/#sec-standard-meta-attributes) and on how to [submit changes to nixpkgs](https://nixos.org/nixpkgs/manual/#chap-submitting-changes).
4747+See the nixpkgs manual for more details on [standard meta-attributes](https://nixos.org/nixpkgs/manual/#sec-standard-meta-attributes).
44484549## Writing good commit messages
4650