OVERCOMING "LISP CONNECTION CLOSED UNEXPECTEDLY" BY CLEANING .CACHE/COMMON-LISP

Cleaning up whatever is in .cache/common-lisp helped me get around issues that began with the update of slime and swank to version 2.28 in Debian unstable.

Using slime would invariable go something like this:

ONE VOWEL AND FOUR CONSONANTS

For fun with Common Lisp and to help solve a certain puzzle - but just a little bit - I wrote a set of tools to analyse words of just five letters.

NONEXISTENT SPAMASSASSIN USER_PREFS

This is for those who combine Spamassassin, Exim and Debian-spamd, and wish to fix those nonexistent spamassassin user_prefs: "No such file or directory" errors and others.

EXIM SYSADMINS BEWARE, DEBIAN BOOKWORM IS A MAJOR UPDATE

A warning for all sysadmin using Exim on Debian Bullseye, don't switch to Debian Bookworm just yet.

CYRUS IMAP SYSADMINS BEWARE, DEBIAN BOOKWORM MIGHT HOSE YOUR MAIL

A warning for all sysadmin using Cyrus imap on Debian Bullseye, don't switch to Debian Bookworm just yet. Your users might lose access to their email. (Updated on 2023-07-19)

TRUE OFFICE PRODUCTIVITY: EMACS REMOTE COLLABORATION (CRDT).

To create documents, presentations, spreadsheets and the like, nothing beats Emacs with two or more users collaborating simultaneous in the same buffer.

ORG-MODE PIECHART IN A HURRY (3D!)

I needed a pie chart, and had very little time. R and Org-mode to the rescue.

MODULES=DEP; A REMEDY FOR UPDATE-INITRAMFS' "NO SPACE LEFT ON DEVICE"

The fix? Add MODULES=dep to /etc/initramfs-tools/conf.d/modules, followed up by update-initramfs.

VERY FIRST STEPS WITH NIX ON DEBIAN

Mixing Debian with Nix, my first steps.

PARTIAL SOLAR ECLIPSE

To catch the partial solar eclipse at noon today, a colleague at work reminded me to use a skimmer (a spoon with lots of tiny holes), to project the sun on a clean surface, for example good quality paper.