Holani

Holani emulates Atari Lynx. It reads 1 file, none of them required: it starts games without them.

About this profile

Detail	Value
Type	libretro
Classification	Official port
Source	https://github.com/LLeny/holani-retro
Upstream	https://github.com/LLeny/holani
Version	1.0.0, the tag at this revision
Revision	LLeny/holani-retro@d0d79b4928e3, LLeny/holani@7871f5cc6a26
Profiled	2026-10-27
Profile	YAML, JSON
Cores	holani
Systems	Atari Lynx
Checks the file by	existence

Install this emulator's files

The installer finds your setup and its BIOS folder, then downloads only the files this emulator reads there and checks each one.

Windows

Open the Start menu. Type PowerShell and open it. Paste the line. Press Enter.

PowerShell

&([scriptblock]::Create((irm https://abdess.github.io/retrobios/i.ps1))) --emulator holani

macOS

Open Terminal, in Applications, then Utilities. Paste the line. Press Return.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator holani

Linux

Open a terminal. Paste the line. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator holani

Steam Deck

Switch to Desktop Mode. Open Konsole. Paste with Ctrl+Shift+V. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator holani

Android (Termux)

Install Termux, a terminal app. Run pkg install python and termux-setup-storage once. Then paste the line. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator holani

On the device

Open a terminal on the device. Or connect from a computer with SSH, a terminal over the network. Paste the line. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator holani

Technical notes

Holani is a cycle-stepped Atari Lynx emulator written in Rust by LLeny. The libretro port (holani-retro) loads lynxboot.img from the system directory at retro_load_game time (src/lib.rs:110-124). Path is built as system_directory + "/lynxboot.img", no subdirectory.

The core library (holani/src/rom.rs) embeds a free boot ROM from https://bjoern.spruck.net/lynx/ as FREE_BOOTROM (512 bytes), used as the default when no external ROM is loaded (Rom::default()). The libretro wrapper attempts to load the real lynxboot.img, but if the file is missing or the system directory is invalid, Lynx::new() already has the free boot ROM initialized. No hash validation on the external file: Rom::from_slice() only checks length == 512.

Files

1 file: 0 required, 1 optional. 1 has an HLE fallback.

In this collection: 1 in repo and 0 missing.

Optional

lynxboot.img optional in repo HLE fallback

Atari Lynx boot ROM

• System: Atari Lynx

• Size: 512 B
• Collection copy: bios/Atari/Lynx/Atari_LYNX_boot.img
• Platforms: lynxboot.img: Batocera, KNULLI, Lakka, RetroArch, RetroBat, RetroPie. bios/lynxboot.img: AmberELEC, EmuELEC, RetroDECK. lynx/lynxboot.img: Recalbox, RomM. AtariLynx/boot.rom: MiSTer FPGA. Atari_LYNX_boot.img: BizHawk

Validation and source

• Validation: size
• Asked for by: emulator code, libretro port and upstream emulator
• Source: src/lib.rs:110-124 (emulator code, libretro port), src/rom.rs:72-79 (upstream emulator)

Next steps

• Get your files, for the setup you play on
• Every system, and the files each one needs
• When a game does not start

Data as of 4 November 2026.