My Tech Blog

Arch Linux - OBS 2026 Aug bug

Sat, 29 Aug 2026 11:06:07 +0200

Currently obs-studio does not start on Arch linux, it will fail with

obs: error while loading shared libraries: libbluray.so.3: cannot open shared object file: No such file or directory

streaming with NVENC H.264 works with workaround:

sudo ln -s /usr/lib/libbluray.so.4 /usr/lib/libbluray.so.3

current obs-studio and libbluray versions:

mdujava $ sudo pacman -Qi libbluray
Name : libbluray
Version : 1.5.0-1
Description : Library to access Blu-Ray disks for video playback
Architecture : x86_64
URL : https://www.videolan.org/developers/libbluray.html
[...]
Provides : libbluray.so=4-64
[...]
Packager : Maxime Gauduin <alucryd@archlinux.org>
Build Date : Sat Aug 22 23:37:53 2026
Install Date : Fri Aug 28 19:27:39 2026
Install Reason : Installed as a dependency for another package
Install Script : No
Validated By : Signature

mdujava $ sudo pacman -Qi obs-studio
Name : obs-studio
Version : 32.2.2-1
Description : Free, open source software for live streaming and recording
Architecture : x86_64
[...]
Packager : Christian Heusel <gromit@archlinux.org>
Build Date : Sat Aug 15 02:15:39 2026
Install Date : Fri Aug 28 19:06:49 2026
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature

Git does not find commit to !fixup

Sun, 09 Aug 2026 20:10:34 +0200

introduction

I started to use --fixup instead of doing “fixing typo” commits in my branches and with git rebase upstream/main --autosquash I prepared branch for a new MR. Receantly I discovered that in one case this worflow is breaking.

Problem is having whitespace at the start of targeted commit message (see reproduction steps).

After investigating git source code, there is “lstrip” right after skipping the “!fixup: " message so when using hashmap_get_from_hash it uses striped message, hence can not find the commit.

Nginx SSL Config

Sun, 07 May 2023 20:00:00 +0200

Nginx config for A+ grade SSL labs by Qualys

Here is my to-go config for any internet facing config with grade A+ on Qualys ssllabs.

server {
 listen 443 ssl; # managed by Certbot
 listen [::]:443 ssl; # managed by Certbot
 server_name example.com; # managed by Certbot

 http2 on;

 ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
 ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
 ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

 # HSTS (ngx_http_headers_module is required) (2 years)
 add_header Strict-Transport-Security 'max-age=63072000; includeSubDomains; preload' always;

 #include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
 ssl_session_cache shared:le_nginx_SSL:10m;
 ssl_session_timeout 1440m;
 ssl_session_tickets off;
 
 ssl_protocols TLSv1.2 TLSv1.3;

 ssl_prefer_server_ciphers on;
 ssl_ecdh_curve secp521r1:secp384r1;
 ssl_ciphers EECDH+AESGCM:EECDH+AES256;

 # OCSP stapling
 ssl_stapling on;
 ssl_stapling_verify on;
 resolver 127.0.0.1; # or other DNS server

 root /var/www/html/;
 
 location ~ /\.ht { deny all; }
 
 location / {
 # First attempt to serve request as file, then
 # as directory, then fall back to displaying a 404.
 try_files $uri $uri/ =404;
 }

 index index.html index.htm index.nginx-debian.html;

}
server {
 if ($host = example.com) {
 return 301 https://$host$request_uri;
 } # managed by Certbot

 listen 80;
 listen [::]:80;
 server_name example.com;
 return 404; # managed by Certbot
}

Pass and multiple contexts

Mon, 17 Apr 2023 20:20:20 +0200

Work and Personal password store

pass the standard unix password manager stores passwords in one directory (default one is ~/.password-store). You can create another seprate store by running following command:

$ PASSWORD_STORE_DIR=$HOME/.path/to/another/store pass init pgp@key.id

New password stores can contain new set of gpg keys.

For quicker access to new store without using (reverse-i-search) you can create an alias

$ alias personal_pass='PASSWORD_STORE_DIR=/home/username/.path/to/another/store pass'

Or create a script in folder that is in your $PATH
~/.local/bin/personal_pass:

Pass and multiple computers

Mon, 17 Apr 2023 20:00:00 +0200

Synchronization by git

pass the standard unix password manager can be synchronized by a git. If you don’t have store yet inicialize it. Inicialization of git is simple as well.

$ pass init pgp@key.id
$ pass git init

After this all password changes make a new commit, to update or get latest data from remote you can use following commands.

$ pass git push
$ pass git pull

About

Mon, 01 Jan 0001 00:00:00 +0000

This is my first attept for a personal blog containg my tech findings and my usage of sw projects.