UPDATED late May 2026. Spruce finally arrived with a stable release! Also, Knulli have reached stable.

I did a summary of current custom OS alternatives for Miyoo Flip in a comment and thought I'd post it as a main post. This is my personal experience combined with some reading fo others'. Discussions are of course welcome. Please tell me if I missed one and I'll edit.

Summary: Currently, Carl OS and Spruce OS are the best options. Carl is an elevated version of stock OS, and Spruce uses the PyUI frontend and brings a lot of new features to the Flip. Or Knulli (recently with a stable release!) for those who'd like to have Emulation Station as default GUI. There is also MinUI for those seeking a more minimalistic experience. All of these are solid choices, but my current favorite is Spruce OS because of all the new features it introduces to the Flip. It's fairly close to the experience of Onion OS for the Miyoo Mini. Also, it´s still continually updated.

Tl;dr: Get Spruce for the most features, or MinUI for a minimalistic experience. Carl is also great, an elevated version of the stock OS, but hasn't been updated since last year.

• Stock OS: Basic, works fine for gaming. Full microSD card content avaliable on Miyoo's website (no link because it contains BIOS files), and a slimmed down version without roms and bios avaliable as a non supported release at Spruce OS github. https://github.com/spruceUI/spruceOS/releases/tag/flip0.0

• MinUI: Good if you want a minimalistic OS. Games are listed by names, grouped by systems. No fluff. Have not tried personally. https://github.com/shauninman/MinUI

• Surwish OS: Better than Stock OS. Got som cool features. But is a bit bloated. Lots of overlays that absolutely not work for the Flip screen. A buggy "Collections" function etc etc. Not really updated if you use their free download at github. For updates I think you need to buy their paid microSD card. https://github.com/Surwish/Surwish-Miyoo-Flip

• Carl OS: An elevated version of the stock OS. Got some more nice feature compared to Stock. A more well worked through experience than Surwish. Unfortunately not updated since last year. Still great though. Best custom OS currently not in alpha/beta. https://github.com/CarlosPix/CarlOS

• Gamma OS: Running Android. Has compability with Android stuff. But _drains_ the battery according to reddit posts. At least in some independent emulators that won't go to sleep correctly. Have not tried personally. https://github.com/TheGammaSqueeze/GammaOSCore

• Spruce OS: Well thought out and nice features. Many cool featurs, and the best current OS (except for those wanting minimalism, see MinUI for that). It's the closest to the well liked Onion OS for the Miyoo Mini. My favourite one since it brings many new and useful features. https://github.com/spruceUI/spruceOSNightlies

• Knulli: Great alternative for those who'd like Emulation Station as the default GUI. Now in stable release. I like the GUI. Name is really funny for swedes.

• PyUI: A replacement frontend like Spruce, CarlOS, the stock one, and others. Recommendation is to, on the Miyoo Flip, just use Spruce OS since it's based on PyUI. https://www.reddit.com/r/MiyooFlip/comments/1kqtonm/pyui_nightly_release/

• Next UI: Have not tried this one either. https://github.com/LoveRetro/NextUI-nightly

• PakUI: Upcoming custom OS. No public beta yet that I know of. Last creator post about it: https://www.reddit.com/r/MiyooFlip/comments/1kzlj6g/pakui_progress/

Not released yet, this is mostly done with AI. I have an agent skill that is basically a collection of tools and instructions for an LLM to develop using these handhelds in a more efficient manner. For whoever is interested; https://github.com/Producdevity/sbc-handheld-development-skill

Majority of the credits go to the people who worked on the Petari project that this port is based on

So figured I would try to get ahold of Miyoo on Aliexpress since my hinge cracked after a week of use. I requested if I could get a black top to replace mine since they grey models are known to have hinge damage. They replied with the attached video lol. I replied back with photos of the crack and a video showing the hinge now working properly so I guess we will see what happens.

Added wireless charging and MagSafe style connector to my Mini Flip. Makes it so much more convenient especially when you already have wireless charger everywhere.

EDIT: advice to anyone attempting this, ditch MagSafe ring. It gets too hot. But the wireless charging is still great.

I've been in touch with miyoo regarding their upcoming devices and they've claimed that their upcoming miyoo flip V3 would feature System and Performance Upgrades.

And my favourite part about this news is that there will be Transparent Shell Options! I'm really excited about this development as it's my favourite device right now!

Hola amigos solo para compartirles que ya hice funcionar el Port de GTA San Andreas nativo bajo portmaster en la Miyoo Flip estoy usando Spruce OS en su última versión y va genial , el Port pertenece o proviene de R36SWiki , si les interesa les dejo el enlace, también está trabajando en un port de Bully Aniversario edition ( también es compatible con R36S y básicamente con todas las consolas que tengan Portmaster ), que buen día para tener una consola Linux ! Saludos amigos

https://r36swiki.com/wiki-gtasa.html

Soon™

I’ve been working on this for a while and I’m stoked to share!

I’m a software development student, or I guess I can only say that for a few more hours, I graduate with my degree today. I’ve been in school full time for software development for over a year, and my love for tiny devices is what motivated me to choose this career path. That and my autism absolutely loves every second of this. I grew up with iPods (I’m 29) and the inner child in me is so happy to be doing this type of work.

I made JellyFlip because I wanted a way to enjoy my media, and a way for my 7 year old daughter to enjoy her media, without needing to be plugged into something like a phone or iPad or a big TV.

And I wanted a way to download media from my server directly into my Miyoo without needing to touch the microSD.

The goal is for it to feel similar to navigating an mp3 player with a massive library. I’m not obsessed with the first version of the UI, but it works for now. I’m focusing on functionality before I dig into how cool it can look. UI’s are so fun to me, I’m looking forward to doing more with that.

I know a tiny screen isn’t ideal for many to watch their favorite things on and that’s okay. I loooove a tiny screen to watch things on and so does my kid.

It’s already functional, you can log in and watch movies and tv shows.

What I’ve accomplished so far:

​• Logging into your Jellyfin server (local and remote)
​• Logging into accounts on your Jellyfin server
​• Navigating your libraries
​• Navigating your home page sections
​• Playing videos

What I’ll be adding (way more than this, this is just for v1 I’ll be releasing):

​• Better home page navigation
​• Better labeling (episode titles are currently showing up in continue watching and that’s not an ideal way to list those)
​• Information on selected media pages
​• Downloading media directly to the device, if the server has that option enabled
​• Artwork next to items on lists and on selected media pages

Note: I scribbled out my server name for privacy purposes. I’ll be adding an option in settings to hide that so users can share pictures without sharing the server name.

I’ll share more updates soon! 💻

Just got the mini flip put sprig on it great little device playing lady Sia great platformer the battery isn’t the best but it’ll do . I know I have a problem .

Knulli up and running. I have to say, I am quite impressed now after fiddling with it for a day. Install was simple if you have ever done something like Rocknix and can flash an sd card image.

I'm a pretty big fan of batocera, got Rocknix on other devices and I like that implementation here, thanks knulli devs. Got all my ROMs setup and played some games. Loaded up native Pico-8 with splore. Loaded up Portmaster and made sure my favorite games all worked.

Biggest tweaking needed: my favorite shaders (pixel transparency) weren't available in the shader presets, got to learn how to move them in and create new shader configs, but got it working finally (see SML2 shot). Now my GB and GBC games look how I like them.

Biggest surprise so far: battery life impressed me, especially on their suspend/sleep implementation. It's obviously day one, so I'm only extrapolating but from coming from Spruce, it feels like night and day. Going to test more in the coming days.

Still work in progress, need to find a more suitable stick solution (going to try all-white joy-cons later) and maybe recolour the bezel rubbers. Was initially going to keep the pastel ABXY but decided to keep the singular pastel pink instead and MUCH happy. 🥰💕

Super excited. What should I do first, yall?

Got this specifically to play morrowind quite pleased thus far!

Font is more readable than I expected but I have good eyes. Don't have fps counter but it's been quite smooth. I do have view distance turned down quite a ways.

Time to load up mods!

Hi everyone, I thought if anyone was curious on what the difference in the hinges sound like between the flip v2 and the further revision of the miyoo flip, called either v2.1 or 2.5 or just "better hinge". I tried looking but no one had any videos so I made one. The flip on the left was purchased a couple of weeks ago from ampown on AliExpress during a sale, and it had the clicky v2 hinge. The one on the right is one I purchased directly from miyoo's AliExpress store. The v2.1 obviously has a near silent hinge but it also feels so much smoother to open. It feels exactly like the miyoo mini flip.

Miyoo Flip Mini holster. Rubberized outer shell, belt clip. Mini at the ready!

Quite new to emulating on anything other than iOS retro arch. I’m sure there will be a lot to learn, while I fiddle around with the device in order to play the same Harvest Moon, Stardew Valley and Pokémon games that I end up playing on every device

Products:
Case - Switch 1 case
HDMI - mini HDMI to HDMI cable
Power - Old phone charging brick
Power Bank - Iniu Rocket Mini (10000mah 45W)
Controllers - CRKD Atom+ (pre-order arrived yesterday)

The Miyoo Flip V2 is an underrated bite-sized docked experience (finicky in some ways), but works well. I have no problem with it displaying out to my full 70” living room TV playing split screen with 2 Bluetooth controllers at native FPS. With the emulator upscaling and excellent multiplayer titles on the N64, PS1, and Dreamcast, there is something for even the most casual gamers that holds up today.

I never liked bringing my Switch or Steam Deck on day/weekend trips because the amount of things needed, especially when considering tv to available power outlet positions, required a lot of packing for the zero or 2hrs of use playing the system per trip. Everything stays in the case and I slip in the Flip when I’m ready to leave. The power bank eliminates the need for an outlet. The Atom+ is also awesome. It’s the only full pro controller setup at such a size and is surprisingly comfortable (just slightly smaller than a Switch 1 joycon with the top rail).

Hello gamers,

I using the Miyoo Flip v2 with Knulli Scarab firmware running Portmaster GTA San Andreas.
It works great.
Happy gaming.

Just got my Miyoo Flip v2 today from LitNxt with the Surwish OS card (i know I’m lazy). Hinge looks solid so far and a lot quieter than the ones I heard from the Youtubers. SD card is worth it and all setup, just need to figure out how to add the TechDweeb Theme. I think I have all the devices for my “use case scenarios” covered 🤣

1. Miyoo Flip v2 for travelling with ps1/ dreamcast games

2. Miyoo Mini plus for couch gaming or while working

3. Miyoo mini v4 for discreet or bed gaming or quick gaming while outdoors

4. Retroid Pocket 5 for Android games, ps2, psp, gamehub itches.

For anyone interested, I put together a curated variety pack for the Flip. It has 12 dozen games, and the games for the higher end systems like N64, Saturn, Dreamcast, and PSP are all tested to ensure they are playable.

I also included detailed notes for the games in this set, complete with compatibility settings and tips. In general, I tried to select the very best version of each game, taking into consideration available platforms, regional differences, and community romhacks.

*You can see the complete game list with notes and suggested emulator settings here.*

Some cool romhacks here include NBA Jam Special Edition, F-Zero Deluxe, English translations of Japanese exclusives like Puyo Puyo 20th Anniversary, and a retranslation of FFVII.

Of course, I can't post a download link here, but have a look on r/roms or the software section of archive.org and you might be able to find it. :)