I am blogging on blog.jfrech.com, mainly about programming, poetry and occasionally photography.

Zpr'(h is a symbolic, directionally super-lazy esoteric programming language I wrote in the tenth week of 2020.

For further detail, I refer to my blog post Zpr'(h.
Zpr'(h's source code is currently hosted on GitHub.

krrp is a functional turing complete esolang focussing on cryptic conciseness whilst preserving capability.
It currently has one interpreter, written in pure C.

The above krrp program calculates all primes below a hundred. Try it online!

For further detail, I refer to my blog post krrp.
krrp's source code is currently hosted on GitHub.

I am a fond user of the version control system git and publish larger projects of mine at GitHub. Politically I have to admit being torn to use the aforementioned Microsoft product. However, I currently value its size-induced expected reliability.
All my repositories are licensed under the MIT license, thus feel free to use my source code to your hearts content.

The On-Line Encyclopedia of Integer Sequences – OEIS – collects and curates integer sequences.

My most recent contribution to the OEIS is sequence A325902:

Numbers whose neighbor's prime factors with multiplicity can be partitioned into two multisets of equal sum.

My OEIS Userpage.

By requesting my web pages, essential data (currently your request's time code, its URI, your ip and your user agent) is being logged by myself and possibly other essential maintenance data by my VPS provider. If you want to see or delete your log files, please contact me.
Other than the above, no data is collected. I do neither deploy malicious trackers, cookies of any kind nor do I aggregate any data in any form. No data is given to third parties and SSL is strongly encouraged; all certificates are provided by Let's Encrypt.

Usage of my web content. All forms of media excluding non-artful source code (the following quine is an example of an artful source file) are not currently licensed. If you wish to use them, please contact me.
Any other source files are licensed under the Expat / MIT License.
Further licensing information specific to my blog can be found at blog.jfrech.com/license.html.

Deployed fonts. All fonts used on my web pages are licensed under the Open Font License. These fonts include IBM Plex (both Sans Condensed and Mono) and STIX (both Math and Text).

Jonathan Frech
Place of residence: please click here
email: please click here