While doing some maintenance on my server, I got tired of searching through the output of ip addr show to find the IP addresses configured on the interfaces.
Thus I wrote a simple CLI tool to display the information I needed in a concise and human friendly form: ipaddr

$ ipaddr
lo          127.0.0.1/8
ens5        198.51.100.160/24
tun24008    10.123.199.78/32
tun71991639 10.200.123.5/32
tun26724    10.100.100.235/32
tun3883710  10.123.111.7/32

A nice side-effect of writing this in Go is that it works out-of-the-box also on non-Linux systems :-)