- an argument switch to give code for 'oneliners' on the command line. One-liners execute like scripts, except that they don't have to specify a Jasper version. (maybe they also autoload more libraries?)
- core libraries are loaded by default (or at least for from-commandline oneliners)
- fast startup time is key. Must not do too many 'stat' calls (e.g. by traversing the path looking for imports, and loading library imports), and if you do traverse the path, cache the results of 'stat' calls.