Print licences used by a given project and its dependencies
Generic, consistent and dotted access of data structures with Access
Structures: lightweight records, a step before classes
Error and condition handling
Scripting. Parsing command line arguments, building self-contained executables.
cl-torrents, app and (extensive) tutorial: web scraping and building executables
Continuous Integration and delivery on Gitlab CI, testing locally with Docker
Installing libraries, dependencies management
Lisp software