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Embassy Alternatives
Similar projects and alternatives to embassy
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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zig
General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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awesome-embedded-rust
Curated list of resources for Embedded and Low-level development in the Rust programming language
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probe-rs
A debugging toolset and library for debugging embedded ARM and RISC-V targets on a separate host
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pebble
This is the latest version of the internal repository from Pebble Technology providing the software to run on Pebble watches. Proprietary source code has been removed from this repository and it will not compile as-is. This is for information only. (by google)
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SaaSHub
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better embassy alternative or higher similarity.
embassy discussion
embassy reviews and mentions
Posts with mentions or reviews of embassy.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-03-18.
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Rust on the RP2350
Embassy got _some_ support for rp2350 for quite some time now
https://github.com/embassy-rs/embassy
- Zlib-rs is faster than C
- Embassy: Modern embedded framework, using Rust and async
- Rust async framework for embedded systems
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Pebble smartwatch firmware released as open-source
TL;DR: No. Maybe? Depends.
It's probably reasonable to make a distinction between "Real Time" desktop/server OS (on CPUs) vs "Real Time" embedded hardware OS (on MCUs).
(Even aside from any hard-/soft- real time distinction.)
On the embedded side, in addition to FreeRTOS (upon which Pebble OS is built), I'm aware of others with reasonably high profile such as:
* Zephyr (Linux Foundation, C): https://en.wikipedia.org/wiki/Zephyr_(operating_system)
* NuttX (Apache Software Foundation, C & C++): https://en.wikipedia.org/wiki/NuttX
In addition, there's also some "up & coming" Rust language projects which fall somewhere along the "framework" to "OS" spectrum (in part, via https://arewertosyet.com):
* Tock: https://github.com/tock/tock
* Embassy: https://github.com/embassy-rs/embassy
* Hubris: https://hubris.oxide.computer
On the desktop side, I seem to recall in the past, OS such as BeOS & QNX have been presented as a possible future for real time desktop OS that hasn't arrived.
As someone else already mentioned, PREEMPT_RT being merged for Linux is a recent development somewhat in this space which could have impact on both desktop & "embedded" situations but suitability varies dependent on, say, whether you're wanting to use it for audio production versus controlling some 10 tonne robot operating next to humans.
Hope this at least goes some way to answering your question. :)
- Embassy: Replacing RTOS with a Rust async scheduler
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Apple is Killing Swift – A great language strangled by governance
The other comment implied it but I think it's worth pointing out that:
> embedded applications that can't have asynchronous execution
Is most definitely not the case.
They can't have the same type of async runtime that would be optimal for a web server or the likes (and I'm not sure all desktop applications and web servers are going to always benefit from the same runtime in the same way), but that's a point in favour of Rust's model imho
If you're interested this is an embedded async runtime that's expected to run in no-std and no-alloc environments
https://embassy.dev/
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Impl Snake For Micro:bit - Embedded async Rust on BBC Micro:bit with Embassy
In this article, I will guide you through creating a Snake game in embedded Rust on the BBC Micro:bit using the asynchronous framework Embassy.
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A review after using Rust on embedded in production for over a year
Rust solved this by autogenning code from mfgr published device xml descriptors. Eg https://embassy.dev/
Better than any C(++) embedded hal I've used
- Building a GATT Server on Pi Pico W
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A note from our sponsor - SaaSHub
www.saashub.com | 25 Jun 2025
Stats
Basic embassy repo stats
85
6,946
9.9
6 days ago
embassy-rs/embassy is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of embassy is Rust.
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