dev-linux

X11

• 2022-02-24 Xlib transparent window with OpenGL support

  This program demonstrates how an X11 window with OpenGL support can be drawn transparent.

Systemd

• 2022-10-26 systemd Shutdown Units - Poseidon Labs

  Designing a system to shutdown gracefully can be tricky. In an ideal world, every service would be managed by a systemd unit. ExecStart would start a process that handles SIGTERM by stopping itself and an ExecStop would inform the process and block to gracefully stop the process and its resources.

  But not all software stops gracefully or does a full teardown of what it set up. In this post, we’ll look at systemd’s shutdown behavior and strategies for writing systemd units that perform custom cleanup tasks before shutdown.

Kiosk

• 2022-10-22 linux - Browser instead of window manager? - Super User

yes:

% startx /usr/bin/google-chrome --kiosk
(or use any other webbrowser)

you could also add this to your .xinitrc / .xsession file:

exec /usr/bin/google-chrome --kiosk

Bash Snippets

• 2022-05-21 Bash trap for debugging bash scripts

trap 'echo "# $BASH_COMMAND";read' DEBUG
echo line1
echo line2
echo line3
echo "Hello World";

Tools

Data processing

• 2022-03-07 TomWright/dasel: Select, put and delete data from JSON, TOML, YAML, XML and CSV files with a single tool. Supports conversion between formats and can be used as a Go package.

  Comparable to jq / yq, but supports JSON, YAML, TOML, XML and CSV with zero runtime dependencies.