The Dappy browser is an open source browser that implements the Dappy protocol. The name system is not the only thing that changes, dappy browsers also deals with CORS/cookies/CSP in a different manner. Simply check the sections specific to browser and web applications to get an idea.
The Dappy browser is built on chromium+electron.
Anyone is free to connect to the public dappy name system, to develop a browser on rust, go or haskell, to add a dappy mode to existing browser or fork them if the license allows it.
We also highly encourage current browser vendors to come chat with us and exchange ideas.