Many thanks to Ben Chapman and his blog post How to Use Your DSLR Camera as a Webcam in Linux.
v4l2loopback is a linux kernel module that allows you to create "virtual video devices". Kernel modules are pieces of code that can be loaded and unloaded into the kernel upon demand. They extend the functionality of the kernel without the need to reboot the system.
Note
If you want to use pure WSLg, you can try the new WSLg (XWayland) tutorial or the WSLg (Wayland) tutorial.
In this tutorial, we will setup GUI in WSL2, and access it using VNC. No additional software outside WSL (like VcXsrv) is required, except, of course, a VNC Viewer (RealVNC, TightVNC, TigerVNC, UVNC, etc, all of them might work flawlessly).
The key component we need to install is the desktop metapackage you want (GNOME, KDE, Xfce, Budgie, etc) and tigervnc-standalone-server.
For this setup, I will use Ubuntu (20.04, 22.04 and 24.04 are working), and install GNOME Desktop. Since the key components aren't bound to Ubuntu or GNOME, you can use your favorite distro and GUI. Check the [Sample
| #include <MIDI.h> | |
| #include <SoftwareSerial.h> | |
| #include <DFPlayer_Mini_Mp3.h> | |
| #include <math.h> | |
| SoftwareSerial mySerial(11, 10); // RX, TX | |
| MIDI_CREATE_DEFAULT_INSTANCE(); | |
| bool isMp3Mode = false; |
Magic words:
psql -U postgresSome interesting flags (to see all, use -h or --help depending on your psql version):
-E: will describe the underlaying queries of the \ commands (cool for learning!)-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)