I'm personally applying with the following tasks:

- Integration with IPFS to allow distributing packages in a decentralized way.

- User services, to offer composable and programmable user
  configurations, which can be shared between users.

- A graphical user interface for both the installation and the configuration /
  package managerment, in the hope to make Guix more accessible to regular users.

Optionally:

- Integrate TeXlive properly.
  
- Add file search to Guix, so that a Guix can search packages by the file paths
  they contain.  

-- 
Pierre Neidhardt
https://ambrevar.xyz/