Like this. It is 20s delay on wifi, up to 60s on mobile data depending. The clip is 60% compressed to fit in the 100mb the upload service complains about. Btw nostrgram.co live audio/video camera live record option is so underestimated. Front camera only though for obvi reasons.
https://nostr.build/av/fddb3761bdb258b9b7090af989583fb32e9c138031208e9420dd6ebf97af97e2.mp4