Study #bitcoin on #nostr 💜 https://video.nostr.build/e28d72e0b0780b4dc6227597404de79f450ac16f06c6443ce9ae65df5826de67.mp4  nostr:note1r527l5awjzjexjgze52zt6vfzvpvxwp6z2yleffm927ashe4mtyq7f9d5y