Meridian
Spark consists of the Station module code as well as the Spark Smart Contract on FVM and a few auxiliary services.
We have generalised the Spark architecture in what we call the Meridian Framework.
Meridian allows other funders and builders to incentivise protocols, networks and off-chain operations.
You can think of Meridian as a demand-driven top-up-able block reward framework.
You can check out the code at https://github.com/Meridian-IE .