I recently added this library in to a project that requires CGO (due to cross compilation needs), and because of that I compiled iconv as a static library (alternatively, I believe providing an install of the dynamic linked iconv library for the target machine would have also worked - however, I chose to compile and include iconv statically), as github.com/qiniu/iconv, required by this library, has the C "iconv" library as a dependency.

I think some mention of this requirement on the "target" system may be useful in the README; Would instructions for linking iconv statically and/or dynamically using CGO, and/or instructions on how to provide the proper iconv DLL on the target machine, also be something that would be useful to have in the README for this project? I am acutely aware that compile options and procedure for go code is hard to come by, so wanted to get your opinion on if adding something about how to do this in the README would be useful (in your opinion); If so, I can put together a PR with what I have found regarding installing iconv on the target system, and bundling it using CGO (I've been working on cross compiling and including iconv for an app I'm working on, so would be more than happy to share my notes for the README, if you think it'll be of use for others).

Also, thank you for providing this great escpos library; It helped me quite a bit recently with a few label formats I needed to print via escpos on a newer golang project.