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Preliminary inspection 3000x2200 1000037619.jpg

The battery is a bit worn out and has swollen.
I need to get it replaced ASAP.

New battery 1920x1080
20260812_192803.jpg

Old battery 1920x1080
20260807_200038.jpg

Xperia XZ1 Battery...

Configuring WireGuard on CentOS, Debian, Ubuntu, and FreeBSD in four different ways

7/August/2026 wireguard centos debian ubuntu freebsd

Below is a set of snippets for configuring WireGuard for three different Linux distributions and FreeBSD.
The setup assumes a Debian server with a 10.9.21.0/24 network.

Server, Debian

apt install wireguard-tools
nano /etc/network/interfaces.d/wg0

auto wg0
iface wg0 inet static
    address 10.9.21.1/32
    pre-up ip link add wg0 type wireguard
    pre-up wg setconf wg0 /etc/wireguard/wg0.conf
    up ip -4 route add 10.9.21.0/24 dev wg0
    # up /bin/systemctl restart sshd.service
    post-down ip link del wg0

umask 077
cd /etc/wireguard/
wg genkey > server-private.key
wg pubkey < server-private.key > server-public.key

nano /etc/wireguard/wg0.conf

[Interface]
ListenPort = 1234
PrivateKey = <server-private.key>

[Peer]
# Debian client
PublicKey = <public.key>
AllowedIPs = 10.9.21.3/32

[Peer]
# CentOS client
PublicKey = <public.key>
AllowedIPs = 10.9.21.4/32

[Peer]
# Ubuntu client
PublicKey = <public.key>
AllowedIPs = 10.9.21.5/32

[Peer]
# FreeBSD client
PublicKey = <public.key>
AllowedIPs = 10.9.21.6/32

Configuring WireGuard on...

Customizing Keychron Q6 Ultra

5/August/2026 keychron gazzew

Keychron OSA Keycaps 3200x1800 IMG_20260424_134337.jpg

OSA profile keycaps 5504x3096
IMG_20260424_133715.jpg

Ready for assembly 5504x3096
IMG_20260618_231248.jpg

Test version 5504x3096
IMG_20260807_120342_5k.jpg

The stock Keychron keycaps with the OSA profile look not bad, but I’m not a lover of typewriters aesthetic.
Since I’m used to hitting combos like CTRL/SUPER/ALT/SHIFT with a single finger for certain shortcuts, I needed to find low-profile keycaps that are all the same height.
Pressing two keys simultaneously may be unfamiliar to casual typists, but if you use a tiling WM, where everything from launching apps to window management - is shortcut-based, it makes total sense.
I immediately picked up some pretty decent low-profile Womier keycaps.
The undersides might have some mold marks, but with a little modding, they are actually quite good.
I also picked up some OUTEMU Half-height switches for testing.
They are low-profile, but that’s all.
The tactile feel is non-existent.
Looking ahead: the stock Keychron Silk POM Tactile Bananas are very good, but they honestly can’t be compared to the Gazzew Boba Black U4T.

Customizing Keychron Q6...

Deeper Sonar: How to Save €170 on a Repeater

25/July/2026 deeper mikrotik

Deeper DP4 Sonar 4032x3024
26-06-22_13-14-43_4184.jpg

Deeper Sonar DP4H13S10 4032x3024
26-06-22_13-22-07_4186.jpg

We have a Deeper DP4H13S10 sonar, and the goal is to increase its signal range.
The original Deeper Range Extender costs about €195.
How can we solve this using what we already have? And even make it better?
It’s very simple.

Deeper Sonar: How...