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25 sats \ 0 replies \ @el_zonte 15 Aug 2022 \ parent \ on: No Internet Connection or Smartphone? You Can Still Use Bitcoin Now (*) bitcoin
Your answered your question I think.
Anyone with enough technical know-how can set up such a service.
No permission required.
The software is open source so you don't have to develop that, only customise it to your specific requirements.
The merchant would need a smart phone with NFC and Breez POS or similar.