No, we are not a registrar ;)
That said, you can set up a redirect, alias or cname at your registrar, also there are dedicated redirect service providers. Long story short: custom domains are well possible, setup is however on the other side.
Hope that helps!
A variant for F-Droid:
The font is not 100% correct. It's a special one in the original design, here: https://gitlab.com/fdroid/artwork/
@IzzyOnDroid just saw a typo: "a special font"
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