cat replacement that converts images into sixel images on supported terminals. If it's not an image, the contents will be dumped as-is.
For fast installation on random remote comptuers with 0 dependencies, so you can check on images fast, e.g. image files stored on server.
Majority of code is based off github.com/mattn/go-sixel
Note: vscode's terminal has experimental sixel support: https://code.visualstudio.com/updates/v1_79#_images-in-the-terminal
CGO_ENABLED=0 go build -ldflags "-extldflags '-static' -s -w" -o 6cat
Prefix GOOS=linux GOARCH=amd64 if required. Then copy or somehow distribute that one file to your server.
Not going to name this cat6, because it confuses googling.