Shadowboy
One Emulator to Rule them All
Shadowboy launched on May 30, 2026 with 3 votes, #3,449 of 20,536 launches that month and more than 50% of that year's launches.
What it does
Ad-free retro emulator and ROM library for Android, Windows, and Linux with no-setup multiplayer lobbies, voice chat, instant replays, saves, and 14+ systems.
Ad-free retro emulator and ROM library for Android, Windows, macOS, and Linux with no-setup multiplayer lobbies, voice chat, instant replays, saves, and 18 supported systems including Nintendo 64, Wii, PS2, Sega Saturn, and Nintendo 3DS.
Start no-setup multiplayer lobbies with invite codes, chat, and voice, then keep the rest of your retro world in one place: 18 supported systems including Nintendo 64, Wii, PlayStation 2, Sega Saturn, and Nintendo 3DS, a beautiful ROM library, managed saves, instant replays, clips, screenshots, shaders, cheats, and controller tools. Shadowboy turns the usual emulator setup work into a clean app experience: organized libraries, invite-code multiplayer, quick cheats, managed saves, and recording tools that stay close to the game. Drop in your games and Shadowboy auto-scans, detects systems, fetches box art, adds badges, and keeps PSP, Nintendo 64, Sega, Nintendo, Wii, PlayStation, PS2, Sega…from shadowboy.app
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Hey HN! Been working on this emulator on and off for the last couple years, and thought now would be a good time to try and show it off here. As far as unique features... I think this is the only online GameBoy emulator with support for save files? So there's your reason to exist, I guess. The WASM port was something I had in the back of my mind but I just kept putting it off because it seemed like it would've been a pain in the ass to implement, but all in all I think it took less than a week so that was a nice surprise!
More work this month
the category →
Smooth Recorder▲257Mac screen recordings that look edited when you hit stop
Work · 24d ago · smoothrecorder.com
Work · 18d ago · readrare.com
Source: Product Hunt launch ↗
Launched alongside, May 2026
the whole month →
Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md
Dev tools · May 2026 · github.com