Because a lot of people asked Codeberg for merch, I reached out to @Hellotux and they prepared some garments: https://hellotux.com/Codeberg
Beyond the sample that I was sent to review the colors of (disclosure alert), the nonprofit doesn't get any commissions/benefits from this (at its explicit request). Our logo is licensed under the CC0, so others can just print the logo on e.g. t-shirts.
(For impartiality's sake, I also reached out to other vendors, but haven't gotten that far yet...)

