Jon Jensen

I live in Provo, Utah and work at End Point Dev on various Internet-related projects: web applications, databases, e-commerce, scalability, system administration, and security, and occasionally, Android app development. I’m a radio amateur (“ham”) with call sign KG7TXN.

I write on the End Point blog and Somusing, blog of my wife, Erin.

Other places to find me on the web: Twitter Facebook Instagram LinkedIn End Point

My email address is jon@swelter.net — since 1999! You may encrypt messages to me using PGP/GnuPG with my current public keys (2019 ed25519 ECC key, 2012 4096-bit RSA key), which superseded my historical keys (1998 DSA key, 1994 RSA key).

A quotation

The majority of mortals, Paulinus, complain bitterly of the spitefulness
of Nature, because we are born for a brief span of life, because even
this space that has been granted to us rushes by so speedily and so
swiftly that all save a very few find life at an end just when they
are getting ready to live. Nor is it merely the common herd and the
unthinking crowd that bemoan what is, as men deem it, an universal ill;
the same feeling has called forth complaint also from men who were
famous. It was this that made the greatest of physicians exclaim that
“life is short, art is long;” it was this that led Aristotle, while
expostulating with Nature, to enter an indictment most unbecoming to a
wise man—that, in point of age, she has shown such favour to animals
that they drag out five or ten lifetimes, but that a much shorter
limit is fixed for man, though he is born for so many and such great
achievements. It is not that we have a short space of time, but that
we waste much of it. Life is long enough, and it has been given in
sufficiently generous measure to allow the accomplishment of the very
greatest things if the whole of it is well invested. But when it is
squandered in luxury and carelessness, when it is devoted to no good
end, forced at last by the ultimate necessity we perceive that it has
passed away before we were aware that it was passing. So it is—the
life we receive is not short, but we make it so, nor do we have any lack
of it, but are wasteful of it. Just as great and princely wealth is
scattered in a moment when it comes into the hands of a bad owner, while
wealth however limited, if it is entrusted to a good guardian, increases
by use, so our life is amply long for him who orders it properly.

—Seneca, On the shortness of life, chapter 1, translated by John W. Basore,
http://en.wikisource.org/wiki/Ontheshortnessoflife/Chapter_I

quotation #632 of collection of 823 · another random quotation

Travel notes

A map of the route my son & I took on our 2019 trip to Armenia, Georgia, Ukraine, and Moldova: Jon and Seth itinerary in June 2019.

An interactive map of various churches we visited in north England in 2013, with links to our blog posts and photos about each: Churches in north England, 2013.

Free software

I support free software and open source. Don’t be a sharecropper! I am on GitHub as jonjensen and have contributed to projects including PostgreSQL, Interchange, DevCamps, and Bucardo. I also keep old miscellaneous scripts around.

Other free software I work most often with: awesome, alacritty, kitty, tmux, Screen, zsh, bash, Firefox, Chromium, Vim, Git, Rust, Go, Perl, Python, Ruby, PHP, PostgreSQL, Linux (mostly Red Hat/CentOS, Fedora, Ubuntu, Debian), Android, OpenBSD, OpenSSH, Apache httpd, nginx, Postfix, Dovecot, Pine (now Alpine), Signal, GnuPG, Standard Notes, Zulip, MediaWiki, VLC, rsync, ripgrep, mtr, and Nmap, just as a sampling. Thanks to all free software developers for your time and efforts!

Human languages

Some Unicode things I keep handy:

Language family maps for reference:

My novice linguistics research: I wrote a paper for Linguistics 490 (senior seminar) taught by John Robertson, winter semester 1998 at Brigham Young University. It examines how Hebrew verb patterns (binyanim) may be semantically grouped using C.S. Peirce’s universal categories. The paper: Hebrew Verb Pattern Tendencies Clarified by Peirce’s Universal Categories (8.5″ x 11″). Reference chart: Roots in various binyanim chart (11″ x 17″).

Writing

Some of my free verse:

Many years ago, a tree fell on our car, so I wrote up the story to share.

Good causes

A few organizations I support:

Religion

Links about religion:

Johann Sebastian Bach composed some of my favorite music. See these freely redistributable Bach sheet music PDFs and the James Kibbie complete Bach organ works recordings. Mutopia collects freely usable music scores. Thanks to those who typeset the music and gave it away!

Hymns:

Liberty

Miscellany

mod.zayda.net is a collection of old Amiga-era music “modules”, including the whole U4ia and F8 collection by Jim Young, mostly created on his Amiga.

End communication.