It looks very fishy.
The link that thr On button opens begins with “damus:nostr:nscript1…” and then a bech32 blob that after decoding contains “asm”, “nostr_set_bool”, “memory” and some long binary stuff in between.
Why would you need such a long script to override a single boolean?
nostr:npub18m76awca3y37hkvuneavuw6pjj4525fw90necxmadrvjg0sdy6qsngq955 is this legit?