Ah, I have to do pipe(2) as well.

nostr:npub1sg4rcvkxkp3sx7f0ex8rtdd9ylcdd2fchtfm22fy45h4w02p306qq7xslc Will fork() return file descriptor in helios? Or you plan to drop it at some point and switch to a spawn model? You don't tell much how you plan to design userspace. I hope it's not yet another unix-clone at least?