golang-github-shenwei356-xopen-dev 0.0~git20181203.f4f16dd-2 (riscv64 binary) in ubuntu noble

 Xopen makes it easy to get buffered (possibly gzipped) readers and
 writers. and close all of the associated files. Ropen opens a file
 for reading. Wopen opens a file for writing. Both will use gzip when
 appropriate and will use buffered IO.