@glitzersachen How about good old IRC? For example, I'm all the time in #picolisp at libera.chat (irc://irc.libera.chat), but there are also channels for Common Lisp and Scheme

Note: Deprecated Pilog Database Predicates in today's #PicoLisp release!

https://www.mail-archive.com/picolisp@software-lab.de/msg11670.html

#Lisp

@thinkberg I am a huge fan of #PicoLisp. Small, fast, and pragmatic. The assembler among Lisps. :-) Unfortunately, it is not available in the #OpenBSD ports. However, I have written a short manual: https://rt.fm/picolisp.txt
@mousebot ... unless you take FEXPRs like in #PicoLisp - they are better than #Lisp macros because they are normal functions, more readable, and can be debugged (e.g. single-stepped).

#PicoLisp version 25.3 is now in Debian testing

#Lisp

@tiang I write 90% of my scripts in #PicoLisp.

@screwtape In #PicoLisp it is either

('((X) (list (lit X) (lit X))) '((X) (list (lit X) (lit X))))
or

(let X '(list 'let 'X (lit X) X) (list 'let 'X (lit X) X))

#Lisp

@symbolics @weekend_editor @rzeta0 In #PicoLisp probably the shortest way is with 'cnt':

: (cnt t '(a b c d))
-> 4

('t' is a function which always returns 'T')

@rzeta0 In #PicoLisp it is 'conc'. IIRC that is 'nconc' in CL
@pedromj @rzeta0 I think so too. Tail recursion is just an obfuscated loop. That's why I hesitated nearly 40 years to implement it in #PicoLisp.