This project provides a Python library that enables communication with the Kamstrup Multical 402 heat meter. The configured parameters will be read from the meter at a certain interval and published in MQTT messages.

Protocol and software to pay for access using monero mining

Google's Operations Research tools:

Mapbox API Client for Go

This is an example Nostr rust project to enable '402 Payment Required' responses for requests to paid content.

A pay to download webserver based onto the lightning network

HTTP 402 Library for Lightning Payments