See my github page.
Some of the projects there are replaced (for example, esy was replaced by mostly-unpublished elisp-code); some are written as an exercise and can be used as tutorial (e.g., Common Lisp web server).
As of 2022, I mostly lost enthusiasm for publishing my code on GitHub.
Back in 2015, I was searching for a good programming language and decided to try Perl.
For years I used graphic utilities (wicd and NetworkManager) on my laptops to establish wireless network connections. Then I realized that actually linux has a number of reliable command-line utilites (iwlist, ifup, ifdown, isc-dhcp-server, wpa_supplicant, hostapd) that provide almost the same functionality as wicd or NetworkManager.
I wrote a perl frontend for these command-line utilites which can be used to connect to (or create) a WiFi network. I primarily use it with IceWM; howerver, it is also compatible with a pdmenu menu program which can be launched from any terminal, even in text mode.
The source and the Debian package are available on GitHub.
Apart from switching between wifi-networks, wifi-switcher can be turned into the wifi-server (adhoc) mode with an ftp server. This is especially handy for my wife's windows smartphone that does not have a slot for an external sdhc-card: I connect the phone to the adhoc wifi-network, log in to the ftp-server using TotalCommander and move the files (photo/audio/video) from/to the smartphone.
As of 2022 I understand that Perl is not the best option when you want to write something serious, but I am still using the wifi-switcher. It failed only once: in one of NYC airports, where there were so many WiFi networks was so big that iwlist refused to list them (crashed).
Lisp is my favorite programming language; unfortunately, it is not so widely used and there are still no lisp-interfaces to some handy libraries. I like to work with libconfig library in my C projects; it is universal (available for C, C, python, perl), and its syntax is powerful enough for my needs.
cl-libconfig is the common lisp interface to libconfig; it is available on github. If you have quicklisp installed, place cl-libconfig source into the ~/quicklisp/local-projects/libconfig/ directory, and then you can use it in lisp (say, sbcl) via the (ql:quickload :libconfig) command.