lkb2k

This also fixes #49, openjdk:8-jre-alpine has ARM64 builds where alpine-java does not.

@roribio any chance of this PR getting merged? Or the main docker file getting updated to Alpine OpenJDK?

Also looking for support printing to TSP143. The TSP143 only supports printing a raster image, so some method to generate a PNG instead of an SVG would be super helpful.

Hi, I'm actually trying to print to a TSP143USB from a react-native iOS app. I don't mind rendering the receipt on a server, but I'm struggling to find an output...

Another vote for making printError or makeUsage public. I'd like to be able to output an error message and the usage statement if the app is just executed with no...

> Just stumbled upon the same issue. Would be nice if there would be an option to enable this behavior or the option to call `makeUsage`. However, I worked around...