Hello PicoLispers, I've updated the Docker container to the latest source. It turns out that compiling the source in a Tinycore container, copying back to host, finally copying precompiled source back into a fresh container is the path to the smallest image. Back down to 14MB including vim so that you can (edit 'mycoolvar) right in the image! Once I get a little time I'll write up an article for the wiki explaining the process.
More detailed instructions at: https://hub.docker.com/r/progit/docker-tinycore-picolisp/ Enjoy. David