larpfetch 1.0.0

LARP as any distro, hardware, or machine you want. Because reality is optional until you pass --real-shit.

larpfetch

LARP as any distro, hardware, or machine you want. Because reality is optional until you pass --real-shit.

A cross-platform terminal fetch utility that detects real system information and lets you lie about it. Ships with 533 colored ASCII logos from fastfetch and 10 built-in LARP profiles.

Installation

uv tool install larpfetch

Or with pipx:

pipx install larpfetch

Usage

larpfetch                    # Show real system info with auto-detected logo
larpfetch -p nasa            # LARP as NASA Linux
larpfetch -p hacker          # Become a Parrot OS hacker
larpfetch --real-shit        # Show only real detected values
larpfetch --list-profiles    # List all available profiles
larpfetch --show-config      # Show current configuration

Override any field

larpfetch --set cpu="Quantum Potato 9000"
larpfetch --set os="Windows 11 Pro" --set kernel="6.18.7-arch1-1"

Custom fields are supported. Unknown fields display with auto-formatted labels.

Built-in Profiles

Profile	OS	Highlights
nasa	NASA Linux	Quantum Potato 9000, 69 PiB RAM, Classified GPU
abomination	Windows 11 Pro	Apple M7 Ultra, HolyC shell, GNOME 83
hacker	Parrot OS	RTX 4090, 128 GiB, KDE Plasma 6
macbook	macOS Sequoia	M4 Max, 40-core GPU, Aqua DE
server	Ubuntu Server 24.04	EPYC 9654, 2 TiB RAM, headless
retro	Windows 98 SE	Pentium III, Voodoo3, 256 MiB
gamer	Windows 11 Pro	Ryzen 9 9950X3D, RTX 5090
minimal	Alpine Linux	512 MiB, ash shell
templeos	TempleOS	HolyC, 640x480 16-color
haiku	Haiku R1/beta4	Haiku Desktop

User-defined profiles in your config file override built-in ones with the same name.

Configuration

Default config location: ~/.config/larpfetch/config.toml

[default]
os = "Arch Linux"
distro = "Arch Linux"
hostname = "btw-i-use-arch"
kernel = "6.99.0-larp"
cpu = "AMD Ryzen 9 9950X3D"
gpu = "NVIDIA RTX 5090"
memory = "128 GiB"
shell = "zsh"

[profiles.custom]
os = "My Custom OS"
cpu = "Custom CPU"
logo = "arch"                    # Reference a built-in logo by name

[profiles.art]
os = "Artistic OS"
logo = """\
    /\\
   /  \\
  /    \\
 /      \\
/________\\
"""                              # Or inline custom ASCII art

[appearance]
color = true
show_authenticity = true
easter_eggs = true

Platform-specific config locations

• Linux: $XDG_CONFIG_HOME/larpfetch/config.toml or ~/.config/larpfetch/config.toml
• macOS: ~/Library/Application Support/larpfetch/config.toml
• Windows: %APPDATA%\larpfetch\config.toml

Precedence

Normal mode:

CLI overrides > selected profile > default profile > real detected values

Reality mode (--real-shit):

Real values only — bypasses everything

Logos

533 ASCII logos adapted from fastfetch (MIT licensed), with full ANSI color support. Colors are applied automatically and respect NO_COLOR.

Logo selection is based on your displayed identity (or real identity in --real-shit mode). Profiles can override the logo by name or provide custom ASCII art.

Easter Eggs

The output may include occasional humorous lines:

• Authenticity: N% — how much of your output is real
• Source: trust me bro — triggered by implausible memory values
• Reality Leakage: 100.00% — absurdly high package counts
• Disappointment: immeasurable — shown in --real-shit mode
• The allegations were true. — deterministic, based on username hash

Easter eggs are deterministic, disableable via [appearance] easter_eggs = false or LARPFETCH_NO_EASTER_EGGS=1, and not offensive.

The Sacred Rule

The user's delusion is authoritative.

This is valid:

OS: Windows 11 Pro
Kernel: 6.18.7-arch1-1
CPU: Apple M7 Ultra
GPU: NVIDIA RTX 9090 Ti
Memory: 69 PiB
Shell: HolyC
DE: GNOME 83
Package Manager: apt btw

Impossible combinations are accepted. Profiles are display identities, not hardware simulations.

Cross-Platform Support

• Linux: /etc/os-release, lspci, environment variables
• macOS: platform.mac_ver(), system_profiler
• Windows: platform APIs, WMIC, COMSPEC

All platform-specific probes fail gracefully. A missing GPU detector doesn't crash the app.

CLI Reference

larpfetch                              # Default mode
larpfetch -p NAME                      # Select profile
larpfetch --profile NAME               # Select profile (long form)
larpfetch --real-shit                  # Real system info only
larpfetch --list-profiles              # List all profiles
larpfetch --show-config                # Show current config
larpfetch --config /path/to/config.toml  # Custom config path
larpfetch --set key=value              # Override a field (repeatable)
larpfetch --color                      # Force color output
larpfetch --no-color                   # Disable color output
larpfetch --version                    # Show version
larpfetch --help                       # Show help

Development

git clone https://github.com/vaproh/larpfetch.git
cd larpfetch
uv sync
just test
just lint

Or with just:

just dev        # install in dev mode
just test       # run tests
just lint       # ruff check
just fmt        # ruff format
just check      # lint + test
just all        # format + lint + test

197 tests covering: config loading, profile resolution, --real-shit invariant, CLI parsing, logo selection, ANSI alignment, easter egg determinism, collector degradation, and more.

Roadmap

• v1.1: --logo, --list-logos, pipe mode
• v1.2: JSON output, package count detection, GPU/disk details
• v1.3: More profiles, compact mode
• v2.0: Plugins, custom themes, export profiles

See ROADMAP.md for full details.

License

MIT — see LICENSE