this weekend, i'm finally replacing Claude for Android with a little pi durable thing that runs fully on my phone. building it directly in pi on my phone. and it has subagents :D (not an official earendil product, just a personal project to battle test durable)

and all of it runs on my phone (except the llm obv)

I’m a bit lost on the difference between pi and pi durable, read the blog post, but still in the darks 😭.

custom pi web client for anyone, yay

Dude please, stop

What does durable checkpoint to when Android kills the process in the background?

wjatever it did last, resumes without a hitch

Ohh ! Thats a nice touch !

i am building grok bot like system with pi durable

durable execution is the only way mobile subagents survive. Android's LMK aggressively kills background tasks under memory pressure. checkpointing state into an append-only SQLite log after each tool turn lets the agent hydrate in 10ms and resume right where it got evicted

and if you ever want to ssh from android:

yeah but can you use claude subscription?

Are the tools to be run locally on mobile? Like, file read and write, script execution...

yes.

nice. Will try it out with Pi Durable.

building the phone agent on the phone it has to survive on is a brutal dogfood loop wonder what battery looks like once subagents wake up

Oki @badlogicgames 😆

subagents on a phone will hit memory limits way before anything else.

lol no

Why is pi durable necessary here? To keep messages between the phone and the laptop?

phone kills process, process respawns and just continues exactly where it left off.

Thanks! Where do you persist the state in this architecture?

I'm dumb, I don't get it.

same. i was running pi. loaded pi durable yesterday. added shizu so it can even control android. best part if u add linq or somethjng similar, u can text from ios. so cool.

I love that Android phones allow this accessibility and flexibility. I've just been using LLLMs to drive the phone while it's connected to the computer that is

Old Wizard talking at Claude’s I think.

i want it! please!

Yeah so just make a auto restart loop on a system just to spite the durability of pi

@grok what is pi durable?

pi durable web app

phone-built agent with subagents. meanwhile my mobile workflow needs a second phone just for all the tabs.

I want this!

but, wouldn’t you rather stream every keystroke and terminal render via a websocket between your server and the browser instead? resizes to browser window, supports mobile and desktop, continue from anywhere that has a browser) tmux included

no, i want a web ui

but what better UI is there for trading text back and forth then the terminal? Just need to bring it to the web/browser in a way that doesn’t suck

i don't just operate on plain text

how many hours do you work a day? I should tell myself work two times more than you :)

Have you had to package up any binaries to distribute as the apk? I found in a project recently that I could bundle a load of software in with my apk and deploy it as a development build, but I believe the Play Store has some rules about binaries in an apk. Still learning though.

Is it public yet? Would love to try.

Good stress test for "runs anywhere": Android kills background processes constantly, so every resume gets exercised for real. Curious how often you hit an interrupted non-replayable tool call, and what the model does with it.

amazing. would it open source?

the agent runs on your phone, the context switching still happens in my 47 browser tabs.

open source this PLEASE 🙏

Keep us posted on the progress please and all curses along the way. Have a great weekend!

I feel validated by seeing "write a long poem" as the session title, it's my go-to for getting the LLM to produce a lot of tokens lmao