No account? No problem! Simply message EyeInTheSkyBot on Libera.Chat with =account register. Then, set a password by messaging EyeInTheSkyBot again with =account webpass sup3rsekr1t.
=account webpass sup3rsekr1t
EyeInTheSky tracks users by their NickServ account name on Libera.Chat, so your username here will match your Libera.Chat NickServ account name.