Joachim Wiberg

mg is a small, fast, and portable Emacs-like editor for people who cannot, or would rather not, run the real thing.

mdnsd is a small Multicast DNS and DNS-SD (service discovery) responder and library for advertising hosts and services on the local link.

Mockup of rxvt new look, running Midnight Commander.

Like many of you I keep mirrors of my projects on a small VPS — partly as insurance, GitHub is lovely until it isn’t, and partly because I like having my own corner of the web.

Well, this has been quiet for a while.

In my Reminder to Self series, this week we turn to some tricks I learned while porting U-Boot to a new board.

As a maintainer of many Open Source projects where networking is key, a side quest has emerged – how to test network applications without root?

Here are a few Buildroot tricks I use to develop and test my packages.

Very brief intro to building GNU Emacs from GIT, with GCC JIT enabled to greatly speed up our favorite editor, GNU Emacs!

Daniel Lipovetsky’s Typometer results.

Finit is an alternative to SysV init and systemd, originally reverse engineered from the EeePC fastinit by Claudio Matsuoka — “gaps filled with frog DNA …” Latest release available on GitHub Features Runlevels, defined per service One-shot tasks, services…

This post shows how you can extend Finit with your own conditions.

I believe there is a gap in the market between BusyBox init and systemd.

I still use my awesome little ThinkPad X200, in fact I now have more of them and even a few X201’s.

The logger(1) tool in your system, /usr/bin/logger, standardized in IEEE Std 1003.2 (“POSIX.2”), has many different implementations.

SMCRoute is a daemon and command line tool to manipulate the multicast routing table in the UNIX kernel.

This post shows how you can create your own operating system based on Buildroot.

Because I always tend to forget steps, and haven’t half replaced myself with a shell script (yet), here’s a reminder to myself on how to post a patch to the Linux netdev mailing list.

This is a mini-HowTo on running Finit in an LXC system container.

As a follow-up to my previous Buildroot mailing-list post about the git format-patch and git send-email commands, this post covers how to set up the latter.

I’m very pleased to announce Finit v4.2!

Micro Tetris — one of the smallest Tetris implementations in the world!

mrouted is an implementation of the IPv4 multicast routing protocol DVMRP, RFC 1075.

# # smcroute.conf example # # The configuration file supports joining multicast groups, to use # Layer-2 signaling so that switches and routers open up multicast # traffic to your interfaces.

Nemesis is a command-line network packet crafting and injection utility for UNIX-like and Windows systems.

This is a blog post about Finit.

watchdogd(8) is an advanced system and process supervisor primarily intended for embedded Linux and server systems.

Finit v4 was finally released the other day!

Alpine Linux is an amazing little operating system.

Because I always forget, here’s a reminder to myself on how to use git format-patch and git send-email from the command line.

With lots of help from the tireless Tobias Waldekranz, I think I’ve finally found the perfect “magit like” email setup.

Reminder to self: remember CFLAGS=-g -Og -rdynamic to allow backtrace_symbols() to actually pretty print function names in stack traces.

I blogged earlier about the awesome little ThinkPad X200 I found and its blinking WiFi LED.

Every so often someone new to Open Source shows up on GitHub or in my inbox with a question like: “I just downloaded your software, what’s next?”

For a while now my Wireguard VPN provider has been handing out a bad DNS server.

The last couple of months have been crazy.

“My name is Joachim and I’m a sudo su - user.”

This is a line editing library for UNIX.

Recently got my hands on a ThinkPad X200, the last model without the useless touchpad and with the awesome classic keyboard.

Every now and then people ask me for pre-built packages of software I maintain.

This is an SNMP server for small and embedded systems, currently Linux and FreeBSD are supported.

In-a-dyn is a small and simple Dynamic DNS, DDNS, client with HTTPS support.

Mounting my ReadyNAS from Nautilus stopped working after upgrading to Ubuntu 20.04.

Some time ago now I was in a meeting with a customer where I first learned of the new syslog standard, RFC5424.

This post is a writeup of how to use basic CGI programs in Merecat httpd v2.32.

uftpd is an FTP and TFTP server for the LAN.

Merecat started out as a pun at Mongoose, but is now useful for actual web serving.

About a year ago I wrote about a way to control the brightness on my x250.

I run Awesome on Ubuntu 19.04 with XScreenSaver.

This is a HowTo for setting up Merecat httpd with Let’s Encrypt HTTPS certificates.