Lisp journey

I released a hopefully inspiring gallery: lisp-screenshots.org We divide the showcase under the categories Music, Games, Graphics and CAD, Science and industry, Web applications, Editors and Utilities.

Advent Of Code 2025 starts in a few hours.

It is with great pleasure and satisfaction that I published new videos about Common Lisp data structures on my course.

Lisp newcomers, I still care about you ;) A section on variables was missing on the Cookbook, here it is.

I updated the Condition Handling page on the Common Lisp Cookbook to show what it means that handler-bind “doesn’t unwind the stack”, along with a couple real-world use cases.

Hacker News was written in the Arc lisp dialect, a dialect created by Paul Graham.

This is a personal pick of the most interesting projects, tools, libraries and articles that popped-up in Common Lisp land in the last two years.

I just released a new documentation website specialized on web development in Common Lisp: 🚀 https://web-apps-in-lisp.github.io/ I’d be embarrassed to tell how long it took me to grasp all the building blocks and to assemble a resource that makes sense.

This is an ongoing work I wanted to share sometimes this year.

This is a follow-up from yesterday’s post on reddit and an announce I wanted to make since this summer: I created 9 videos on CLOS, for a total of 1 hour and 22 minutes, in which you learn what I detail below.

You dream to build a cross-platform GUI in Common Lisp?

I am not the original author of cl-ansi-term, but I revived it lately.

Last week I finished a new service written in Common Lisp.

Common Lisp has various equality functions: =, eq, eql, equal, equalp, string-equal, char-equal… but what are the differences??

Lem is an awesome project.

I just got 1001 learners on my Common Lisp course on Udemy.

We just released cl-str v0.21.

A short post to show the usefulness of Hunchentoot-errors and to thank Mariano again.

For those who don’t know and who didn’t see the banner :D I am creating a Common Lisp course on the Udemy platform (with complementary videos on Youtube).

Being able to load a custom theme is great, but it would be even better if we didn’t have to manually install one.

Do you think Tcl/Tk GUIs are doomed to look outdated?

I finally added translations to my Lisp web app \o/ I wanted to do it with gettext and Djula templates.

In 2018, I wrote a blog post and the Cookbook page on how to build Common Lisp binaries, and how to parse command-line arguments with the unix-opts library.

And 2022 is over.

You are doing god’s work on a time-intensive computation, but your final step errors out :S Are you doomed to start everything from zero, and wait again for this long process?

Those are useful Common Lisp debugging tricks.

In our previous entry, we saw how to deploy our web application with Systemd, either from sources or with a binary.

How do you run your Common Lisp (web) application on your server?

Caution [from 2017: what a road since then]: this is a draft.

A few weeks ago, I put together a new Lisp video.

In this video I want to demo real-world Lisp stuff I had trouble finding tutorials for: how to create a CL project: what’s in the .asd file?

We want a web app to display a list of data and have an input field to interactively filter it.

lisp-lang.org Common Lisp Cookbook awesome-cl learning and tutorials Lisp project of the day Google’s Lisp koans Lisp tips a GitHub repository where anybody can post tips an tricks. search libraries on http://quickdocs.org/ Individual sites: sjl’s road to…

Everyone, let me celebrate a little bit: I am creating a Common Lisp video course on the Udemy platform.

Everyone says “Nobody uses Lisp” and Lispers say “Yes they do, there’s ITA, and, um, Autocad, and, uh, oh yeah, Paul Graham wrote Viaweb in Lisp!”

I have come to like asking questions to people running companies that use CL, and I have Arnold in my radar for quite some time.

I maintain a web application written in Common Lisp, used by real world© clients© (incredible I know), and I finally got to finish two little additions: add pagination to the list of products cleanup the HTML I get from webscraping (so we finally fetch a…

Recently, the awesome-lisp-companies list was posted on HN, more people got to know it (look, this list is fan-cooked and we add companies when we learn about one, often by chance, don’t assume it’s anything “official” or exhaustive), and Alex Nygren info…

LispWorks is a Common Lisp implementation that comes with its own Integrated Development Environment (IDE) and its share of unique features, such as the CAPI GUI toolkit.

The Lem editor, which supports Common Lisp as well as other languages, works by default in the terminal with a ncurses frontend (it also has an experimental Electron frontend).

This is a description of the Common Lisp ecosystem, as of January, 2021, from the perspective of a user and contributor.

I am glad to announce that the Common Lisp Cookbook is now available in ePub and PDF.

A quick post to celebrate the birth of another Common Lisp application running in production©.

I recently enjoyed this discussion on the pro mailing list.

Some days ago on reddit/r/lisp, we got to (re)discover CLPM, the Common Lisp Package Manager.

See here: https://ko-fi.com/s/01fee22a32 Let me try something: I propose you here to buy the ePub, even though it is meant to be available for free.

When I didn’t know Lisp at all, I skimmed at CLSQL’s and Mito’s documentation and I didn’t find a mention of “lazy”, “querysets” (a Django term!)

Mikelevins, https://news.ycombinator.com/item?

Dear lispers, I decided that I can not develop three projects in parallel fast enough, so I’m seeking for a fellow programmer to join the effort.

I wrote a free software for bookshops to publish their catalogue online.