KWrite: No spelling check on Arch Linux

pacman -S hunspell-en_au sonnet

Flameshot gui does not start in xfce4: Screenshot portal timed out after 30 seconds

flameshot: error: Screenshot portal timed out after 30 seconds
flameshot: error: Unable to capture screen
flameshot: info: Screenshot aborted.
Make its config file:

mkdir -p ~/.config/flameshot
nano ~/.config/flameshot/flameshot.ini
with content of:

[General]
useX11LegacyScreenshot=true

sudo: locked out ofter three failed password attempts

As a root (su -):

faillock --user unser_name --reset

xfce4: autologin does not work

It autologin does not work despite setting in /etc/lightdm/lightdm.conf:

autologin-user=your_user_name
autologin-user-timeout=0
Check if your your_user_name is added to autologin group or even if the group exist:

sudo groupadd autologin
sudo usermod -aG autologin your_user_name

mounting ntfs drive: wrong fs type, bad option, bad superblock on /dev/sdh2, missing codepage or helper program, or other error.

sudo mount -o ro /dev/sdh2 /tmp/a

pi-intercom over SSH: the 30-second guide

pi-intercom is same-machine only — it talks via a Unix socket at ~/.pi/agent/intercom/broker.sock. sshfs won't forward it (sockets aren't regular files). Forward the socket itself.

1. Keep the broker alive on host A

pi
ls -l ~/.pi/agent/intercom/broker.sock # must exist

2. Forward it to host B — don't use ~ after :

rm -f ~/.pi/agent/intercom/broker.sock
REMOTE=$(ssh user@hostA 'echo $HOME/.pi/agent/intercom/broker.sock')
ssh -nNT -o StreamLocalBindUnlink=yes -L $HOME/.pi/agent/intercom/broker.sock:$REMOTE user@hostA

3. Use it

pi
intercom list # shows sessions from both hosts


Troubleshooting channel 1: open failed: remote socket missing (broker died after 5s idle), ssh -v, or AllowStreamLocalForwarding no on hostA (sudo sshd -T | grep allowstreamlocalforwarding).

gentoo: Fixing Flameshot's Wrong-Monitor Bug on XFCE

If Flameshot's screenshot selector on Linux keeps popping up on the wrong monitor — even one that's turned off — check your primary display setting before anything else.

On my Gentoo + XFCE4 + X11 setup, Flameshot (Flatpak) kept opening its capture overlay on my second monitor, no matter what I did. Compositor tweaks, permissions, config resets — nothing worked.

The actual cause: my main monitor wasn't set as primary in XFCE's display settings. Flameshot just follows whatever XRandR reports as primary, regardless of which screen is actually active.

One change in Settings → Display, and it's been working perfectly since.

xpra: insufficient permissions to use socket path '/var/run/xpra/tux-5'

On the remote host, you have to be added to xpra group, e.g:

sudo gpasswd -a user_name xpra

Reasonix: use openrouter as provider for DeepSeek

In ~/.reasonix/config.toml:

[[providers]]
name = "deepseek-flash"
kind = "openai"
base_url = "https://openrouter.ai/api/v1"
model = "deepseek/deepseek-v4-flash"
api_key_env = "OPENROUTER_API_KEY"
context_window = 1000000
price = { cache_hit = 0.0028, input = 0.14, output = 0.28, currency = "$" }
And in ~/.reasonix/.env:

OPENROUTER_API_KEY=sk-or-v1-xxxx

xpra: USE flags to install on gentoo without using nvidia

/etc/portage/package.use/xpra should be:

x11-wm/xpra -video_cards_nvidia
x11-base/xorg-server xvfb