I made it a purely front end app so some of these features would add some complexity of data storage somewhere. Nostr realys might allow for this!
To solve the custom amount, you can append an amount in sats to the URL after your npub to have an invoice created for that specific amount.
Example
.app/npub/1000
For 1000 sats
LiveFreeBTC / Edward
npub1f8…65px6
2026-06-13 17:25:57 UTC
in reply to nevent1q…uhs3
Author Public Key
npub1f86cvxyx0xhjkv0g6chlz5a67anl6rzcdyulg9pw7etqd53kla6st65px6Published at
2026-06-13 17:25:57 UTCEvent JSON
{
"id": "b0e748f0d16217ce5f0da9d9c025be1a6f2ed08111dccbb7b110f396488118d5",
"pubkey": "49f586188679af2b31e8d62ff153baf767fd0c586939f4142ef65606d236ff75",
"created_at": 1781371557,
"kind": 1,
"tags": [
[
"e",
"259b5d9cbb5dffb9a31ea20c2089ee27169bc825852f3ce9fd84487ba2d96ea3",
"",
"root"
],
[
"e",
"15d96b0a5fcd18f04fbf2fb51c005c532b46e087b6eb1938b86745235a3296a0",
"",
"reply"
],
[
"p",
"49f586188679af2b31e8d62ff153baf767fd0c586939f4142ef65606d236ff75"
],
[
"p",
"48e976057bf2cf1333020355b5d243f8dd813f193051d1cb04413894f46acc43"
],
[
"r",
"wss://nittom.nostr1.com/glyph"
],
[
"r",
"wss://premium.primal.net/"
],
[
"r",
"wss://nos.lol/"
],
[
"r",
"wss://relay.primal.net/"
],
[
"r",
"wss://nostr.semisol.dev/"
],
[
"r",
"wss://relay.veganostr.com/vertex"
],
[
"r",
"wss://relay.islandbitcoin.com/alpha-karma-quartz"
],
[
"client",
"Primal Web"
]
],
"content": "I made it a purely front end app so some of these features would add some complexity of data storage somewhere. Nostr realys might allow for this!\n\nTo solve the custom amount, you can append an amount in sats to the URL after your npub to have an invoice created for that specific amount.\n\nExample\n\n.app/npub/1000\n\nFor 1000 sats",
"sig": "17a4ed6ddc230742775a79e1859075fe09d5f90588946e2141d1b018d6fdf4637664d73c7ff0dd6f62adf990aeeb85bef4b57b330ce8ee7549fc946f1bc67195"
}