We normally generate our ISOs with Github Actions and either upload them to Sourceforge or our partner CDN77. You can also upload to Github Storage, you might need to split your ISO to 2 GB junks.
So how we can update that edition:
- create a project similar like the Sway Edition
- update the profiles in a personal fork
- adjust the CI to your liking and let Github Actions build your ISOs
- test the ISOs with/for the community
- inform the @manjaroteam to pick up your profile, so it gets build when we do regular community releases