testsAndMisc/README.md at main

mirror of https://github.com/kuhyx/testsAndMisc.git synced 2026-11-10 20:27:02 +01:00

Krzysztof kuhy Rudnicki f15f00f3fe Re-point paths for the ~ reorganisation (home-tidy)

Also bumps the 16 meta/requirements pins the freshness gate flagged
(anthropic 1.5.0, numpy 2.5.3, pytest-randomly 5, flake8-bugbear 26.9.9,
ruff 0.16.7, pyright 1.1.414, selenium 4.49.0, hypothesis 6.168.0, lxml
6.1.3, pipdeptree 4.2.5, the two types-* stubs) and Flutter 3.47.3 in
meta/.fvmrc. One test still expected the pre-move ~/mcp-servers path.

The pre-commit hook fed .zsh files to shfmt and shellcheck, neither of
which parses zsh (SC2148/SC1071), so no zsh file could be committed since
the hook was tightened on 2026-08-22; those now get `zsh -n` instead. The
hook's own shfmt pass also staged its reformat of 8 shell files.

CI_GREEN_SKIP because main is red on exactly the dependency-freshness
finding this commit fixes, which is the documented use of that flag.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AwtowrowDXx6ccmWVPkCaF

2026-09-11 20:50:19 +02:00

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Dual Steam Accounts (same PC, two monitors)

Runs a second Steam instance as player2 on HDMI-0, alongside your main session on DP-0. Both accounts play simultaneously with full GPU acceleration — no VT switching needed.

One-time setup (fresh install)

1. Create the player2 user:

sudo useradd -m -G audio,video,input -s /bin/bash player2
sudo passwd player2

2. Install dependencies:

sudo pacman -S xorg-xhost

3. Add passwordless sudoers rule (allows launching Steam as player2 without a prompt):

echo "kuhy ALL=(player2) NOPASSWD: /usr/bin/steam" | sudo tee /etc/sudoers.d/player2-steam
sudo chmod 440 /etc/sudoers.d/player2-steam

4. Symlink the script into PATH:

sudo ln -sf ~/src/testsAndMisc/linux_configuration/gaming/start-player2.sh /usr/local/bin/start-player2

5. Start the getty on tty2 (needed if LightDM autologin is configured, otherwise tty2 has no login prompt):

sudo systemctl enable getty@tty2

Usage

start-player2

A Steam window opens as player2. Drag it to HDMI-0 and log into the second account. Click whichever monitor you want to control — no switching needed.

To stop: close the Steam window or pkill -u player2 -f steam.

How it works

Steam is launched as player2 via sudo -H -u player2 steam on DISPLAY=:0 (your main X session).
Because player2 has a separate home directory (~/.local/share/Steam/), the two Steam instances don't conflict — different PID locks, different configs, different accounts.
xhost +local: grants local users access to your X display.
Full GPU acceleration since there is no nesting — both instances hit the hardware directly.

Monitor layout

Output	Resolution	Session
DP-0	3840×2160	kuhy (main)
HDMI-0	2560×1440	player2

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