Hmm you should be able to upload 37mb to primal, I believe their limit is either 50 or 100.
The registration page for Nostr.build shouldn't disappear, you should be able to switch to the primal app and then switch back. Maybe nostr:nprofile1qqsfnz2sqsflkatdssmeztxr90s8xrd7r07xkhfwaa6eu9zkcguljpgprpmhxue69uhkc6t8dp6xu6twvaex2mrp0yhxxmmdqyv8wumn8ghj7am9d33k7mt99ehx7um5wgh8w6twv5q3kamnwvaz7tmwdaehgu3wwphhyar9d4hkuetjduhxxmmdh047hg can help.
