Michael Brazda @omnipotens@linuxrocks.online

Understanding #systemd #2

systemd has incredible docs, some of the best I've ever seen, since systemd is so huge though it's difficult to find anything in systemd.

'man systemd.index' - index of man pages related to systemd.

'man systemd.directives' - list of all directives (variables) for use when creating or understanding units files (files end with .service or .mount etc)

'man systemd.special' - list of units that systemd provides and are considered important.

Understanding systemd #1

Contrary to popular belief #systemd is not just an init system. Take everything you know about older init systems and throw it out the window, that's what the systemd devs did anyway.

Init is one part of systemd but it also does things like process management, application resource management, cgroup implementations, containerization, networking, device management, etc.

I personally call it a full management layer.

For those that don't know I work at Red Hat. I do support and my primary focus is on systemd.

As there's a massive misunderstanding across the board with #systemd, from what it actually is to how do I properly create unit files, I was thinking of trying to do kind of a recommendations and explanations one toot at a time.

So if anyone has questions or would like explanations please let me know.

Watch "The Scariest Film Of All Time" on YouTube - https://youtu.be/rZTIBo4ZlOw

In @FreeCADNews@twitter.com community member un1corn posted "the most complex project I have done to date", a W. Allchin steam traction engine, at https://forum.freecadweb.org/viewtopic.php?p=347598#p347598

Jubilee: A Toolchanging Homage to 3D Printer Hackers Everywhere

I admit that I’m late to the 3D printing game. While I just picked up my first printer in 2018, the rest of us have been oozing out beautiful prints for over a decade. And in that time we’v… https://hackaday.com/2019/11/14/jubilee-a-toolchanging-homage-to-3d-printer-hackers-everywhere/

Original tweet : https://twitter.com/hackaday/status/1194996006800244738

Another progress update on my projects and the like.
Looks like I'll need more time, and caffeine, after work to focus on what the driving issue is behind the librebooted T400 not seeing the advanced dock...
www.s31bz.com/blog/2019/11/13/progress-on-librebooted-t400-with-advanced-dock-2503

HF Propagation and Earthquakes

For all the successes of modern weather forecasting, where hurricanes, blizzards, and even notoriously unpredictable tornadoes are routinely detected before they strike, reliably predicting one aspect of nature’s fury has … https://hackaday.com/2019/11/12/hf-propagation-and-earthquakes/

Original tweet : https://twitter.com/hackaday/status/1194316457536036864

Improving Exposure On A Masked SLA Printer

It’s taken longer than some might have thought, but we’re finally at the point where you can pick up an SLA 3D printer for a few hundred bucks. These machines, which use light to cure a resin, are capable of fa… https://hackaday.com/2019/11/12/improving-exposure-on-masked-sla-printer/

Original tweet : https://twitter.com/hackaday/status/1194361540532682759

Core XY Explained

If you are building a CNC machine, a 3D printer, or even a plotter, you have a need for motion in both the X and Y directions. There are many ways to accomplish this, for example, some printers move the tool in the X direction and the … https://hackaday.com/2019/11/12/core-xy-explained/

Original tweet : https://twitter.com/hackaday/status/1194406916677611521

This Arduino Keeps Its Eyes On You

[Will] wanted to build some animatronic eyes that didn’t require high-precision 3D printing. He wound up with a forgiving design that uses an Arduino and six servo motors. You can see the video of the eyes moving aroun… https://hackaday.com/2019/11/13/this-arduino-keeps-its-eyes-on-you/

Original tweet : https://twitter.com/hackaday/status/1194769535632596992