By ValkaTR, 28 June, 2024

i tried vr sometimes and it was fun. finally i got HTC VIVE XR Elite on my paws. it took me 2 days take make it work on linux ><

Your browser does not support the video tag.

Video: valkatr_-_htc.mp4 (4,3 MB).

it is not very stable, because we need 3 different programs to work at the same time and communicate with each other.

on headset an external .apk package is installed.

By ValkaTR, 7 September, 2023

It is convinient to have a quick script that let convert zoo of various different formats like .webm, .mkv, .avi and other to .mp4, that is playable and supported on majority of devices. Like when you downloaded some videomeme and want to share it with friends in telegram, but telegram doesn't support .webm that well, especially on mobile, and after upload it appears as a file instead of conviniently playable video.


By ValkaTR, 8 July, 2023


When administering a server, there may be some users who need limited root functionality to access certain, but not all, root functions.


sudo (superuser do) allows you to configure non-root users to run root level commands without being root.  Access can be given by the root level administrator through configuration of the /etc/sudoers file.  Please note that making changes directly to the


By ValkaTR, 17 April, 2023
You want to use Linux and OpenSSH to automize your tasks. Therefore you need an automatic login from host A / user a to Host B / user b. You don't want to enter any passwords, because you want to call ssh from a within a shell script.
By ValkaTR, 12 July, 2020

it is possible to use estonian identity card in manjaro linux (arch linux based).

install the middleware to access smart cards:

# pacman -S pcsclite pcsc-tools ccid

enable and start pcscd service:

# systemctl enable pcscd
# systemctl start pcscd

now you can test your estonian identity card. run "pcsc_scan" application in console. if the card is unresponsive, then try inserting it again: