Jupyter-rtc is built on y.js too.

There's a sqlite CRDT: cr-sqlite,: https://news.ycombinator.com/item?id=41921992

vlcn-io/cr-sqlite: Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite https://github.com/vlcn-io/cr-sqlite

Notes on sandboxing agents: amla sandbox, agentvm, bwrap at least; debugging mcp servers, and signing agent traces in a standard format: https://news.ycombinator.com/item?id=48893850

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Can juggler: Design and verify a guitar effect pedals and a wavetable synth with JUCE on a low power chip?

JUCE on embedded controllers; Rust embedded RTOS-like features, a DSP and low power draw:

> Ambiq Apollo4 Plus | ARM Cortex-M4F | ~4–10 µA / MHz | more efficient than an RP2040 Pi Pico. The hardware FPU handles audio math at a fraction of the power footprint.

> STM32U5 Series | ARM Cortex-M33 ~110 µA / MHz | energy-saving modes, math accelerators (Cordic for sines/cosines), audio peripherals

> STM32L4 Series | ARM Cortex-M4F | ~100 µA / MHz | mature, ultra-low-power, robust I2S audio support, sleep state

grame-cncm/faust: Functional programming language for signal processing and sound synthesis / [that compiles to microcontroller DSP code, LLVM IR,] https://github.com/grame-cncm/faust

Then a Rust-based OS for microcontrollers; to isolate devices and device drivers from other processes;

I'd like to learn this too (so this is worth researching)

Rust packages for DSP:

embedded-hal, embedded-io, rand_core

Navigating the Embedded Rust Ecosystem https://www.theembeddedrustacean.com/p/navigating-the-embedd...

https://google.github.io/comprehensive-rust/bare-metal/micro...

hubris > Flash instructions already mention an STM32 F but not yet U or L: https://github.com/oxidecomputer/hubris#flash

Task: Add support for STM32U and STM32L to hubris

"Navigating the Embedded Rust Ecosystem" https://www.theembeddedrustacean.com/p/navigating-the-embedd...

The micro:bit has a speaker and something like a DSP and rust support, though it's not going to run JUCE and BespokeSynth ; kk Just rtic, cortex-m-rt, and nrf52833-hal (for micro:bit v2) might be sufficient but there's already microbit_bsp:

microbit_bsp is a board support package (BSP) library for the micro:bit v2 and newer: https://docs.rs/microbit-bsp/latest/microbit_bsp/

Another task; Develop and test a board support package for low-power chips for hosting effects from JUCE compiled with or like Faust.

But then contain agent sessions;

e.g. Hubris has no shared memory so audio streams must be shoveled over message passing

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Back to agent sandboxing;

It looks like WebKitGTK uses bubblewrap on linux unless running in a flatpak, because flatpaks don't have permission to create namespaces so bwrap can't run.

Bubblewraplauncher.cpp: https://github.com/WebKit/WebKit/blob/main/Source/WebKit/UIP...

FlatpakLauncher.cpp: https://github.com/WebKit/WebKit/blob/main/Source/WebKit/UIP...

CF workers support nested agent isolates since 2026-03: https://blog.cloudflare.com/dynamic-workers/

dloss/awesome-agent-sandboxes: A curated list of sandboxing solutions for AI agents https://github.com/dloss/awesome-agent-sandboxes