To install all the examples here to play with..

$ go install github.com/arbarlow/surematics/...

Simple postcode distance calculator, using haversine formula. This is "as the crow flies" and so not accurate enough for say, a maps service or driving directions.

There are some comments in the code..

To use...

$ postcode 'SW1A 1AA' 'E8 4AA'

Super simple and stupid chat client and server.

The server is a simple tcp socket that sends a broadcast to all clients and terminates responses with a \r so that respones with multiple lines can be handled. A list of current users is simply sent with a prefix of u: which the chat client handles differently.

First run the server..

$ chatserver

then in a seperate tmux pane or similar, run the interactive gui

$ chatclient