The difficulty is that there are so many choices of third party plugins to choose from.
The built-in PoS app is likely the least complicated to implement.
https://docs.btcpayserver.org/Apps/#point-of-sale-app
For your accounting needs, there is the Greenfield REST api which would allow you to automate accounting requirements.
Here is an article that I wrote that may get you going in the right direction.
https://highlighter.com/a/naddr1qvzqqqr4gupzqv9enyt2zcqyug7f8nhjp5r0skt5ayzrl6ytcxmug5q03v7vdcl7qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qqgv3skxcfnx5enswxhzsq
cadayton
npub1xz…rtaqn
2025-03-16 14:08:49
in reply to nevent1q…zdqz
Author Public Key
npub1xzuej94pvqzwy0ynemeq6phct96wjpplaz9urd7y2q8ck0xxu0lqartaqnPublished at
2025-03-16 14:08:49Event JSON
{
"id": "5b800ed0ffb0a1726557f7de1bee485a38cdfe185112a56270e541833b35d74a",
"pubkey": "30b99916a16004e23c93cef20d06f85974e9043fe88bc1b7c4500f8b3cc6e3fe",
"created_at": 1742134129,
"kind": 1,
"tags": [
[
"a",
"30023:30b99916a16004e23c93cef20d06f85974e9043fe88bc1b7c4500f8b3cc6e3fe:daca3538",
"wss://relay.damus.io/",
"mention"
],
[
"e",
"2ddfda2121ffbfe84a02d3c1b1f5f7cfe84ba46f416ac37fcf961d2f5feeea64",
"ws://192.168.18.7:7777",
"root"
],
[
"e",
"21e2022d2194b2bd396d55b7f350de5a23b95ea5d15cb07bcf693ac38c3af4a8",
"ws://192.168.18.7:7777",
"reply"
],
[
"p",
"035cd8aaf7bb367ad663604b302729d1164b0ffb1f718a0af61bd929052d814d",
"",
"mention"
],
[
"p",
"30b99916a16004e23c93cef20d06f85974e9043fe88bc1b7c4500f8b3cc6e3fe",
"",
"mention"
],
[
"r",
"wss://ditto.pub/relay"
],
[
"r",
"wss://nostrelites.org/"
],
[
"r",
"wss://relay.damus.io/"
],
[
"r",
"wss://relay.mostr.pub/"
],
[
"r",
"wss://relay.nostrplebs.com/"
],
[
"r",
"wss://relay.primal.net/"
],
[
"r",
"wss://relay.snort.social/"
],
[
"r",
"wss://relay.davidebtc.me/"
],
[
"r",
"wss://relay.noswhere.com/"
]
],
"content": "The difficulty is that there are so many choices of third party plugins to choose from.\n\nThe built-in PoS app is likely the least complicated to implement.\n\nhttps://docs.btcpayserver.org/Apps/#point-of-sale-app\n\nFor your accounting needs, there is the Greenfield REST api which would allow you to automate accounting requirements.\n\nHere is an article that I wrote that may get you going in the right direction.\n\nhttps://highlighter.com/a/naddr1qvzqqqr4gupzqv9enyt2zcqyug7f8nhjp5r0skt5ayzrl6ytcxmug5q03v7vdcl7qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qqgv3skxcfnx5enswxhzsq",
"sig": "7a2221c86bdfb9ca364b878b7d9c1530bdd25175c3f005b3067b2a9b2feb455daab91142ea340b34f83ffe835cee66311b6b84116e9cef5ee97269fadeba65c8"
}