This is a recreation of the nerdle game available at nerdlegame.com, which is itself a math-themed Wordle clone.
You can build the project using go build and run the executable which should be titled nerdle. It will run on port 10000 by default.
index.html contains a very simple frontend for it, which also displays at the root url. However, you can also query the REST API for the Go backend directly using JSON.
The new endpoint will return a key for a game. It takes the parameters in the GameStart struct in server.go. The guess endpoint will return several parameters, usually including a boolean for whether the guess was valid and an array indicating the successes of the guess. It takes the parameters in the Guess struct in server.go.