humility
slint
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humility | slint | |
---|---|---|
6 | 138 | |
512 | 15,020 | |
2.5% | 8.7% | |
8.2 | 9.9 | |
7 days ago | 5 days ago | |
Rust | Rust | |
Mozilla Public License 2.0 | GNU General Public License v3.0 Or Slint Royalty-Free |
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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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humility
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Barracuda Urges Replacing – Not Patching – Its Email Security Gateways
A lot of questions in there! Taking these in order:
1. We aren't making standalone servers: the Oxide compute sled comes in the Oxide rack. So are not (and do not intend to be) a drop in replacement for extant rack mounted servers.
2. We have taken a fundamentally different approach to firmware, with a true root of trust that can attest to the service processor -- which can turn attest to the system software. This prompts a lot of questions (e.g., who attests to the root of trust?), and there is a LOT to say about this; look for us to talk a lot more about this
3. In stark contrast (sadly) to nearly everyone else in the server space, the firmware we are developing is entirely open source. More details on that can be found in Cliff Biffle's 2021 OSFC talk and the Hubris and Humility repos.[0][1][2]
4. Definitely not vaporware! We are in the process of shipping to our first customers; you can follow our progress in our Oxide and Friends podcast.[3]
[0] https://www.osfc.io/2021/talks/on-hubris-and-humility-develo...
[1] https://github.com/oxidecomputer/hubris
[2] https://github.com/oxidecomputer/humility
[3] https://oxide-and-friends.transistor.fm/
- Do you use Rust in your professional career?
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What's the project you're currently working on at your company as a Rust developer?
It's a mix of embedded work and improving the system's tooling (faster builds, debugger support, etc)
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Oxide on My Wrist: Hubris on PineTime was the best worst idea
Other folks have mentioned this, but it's important to understand the limitations of Rust with respect to safety. In particular: every stack operation is -- at some level -- an unsafe operation as it operates without a bounds check. This isn't Rust's fault per se; non-segmented architectures don't have an architecturally defined way to know the stack base. As a result, even an entirely safe Rust program can make an illegal access to memory that results in fatal program failure. That, of course, assumes memory protection; if you don't have memory protection (or, like many embedded operating systems, you don't make use of it), stack overflows will plow into adjacent memory.
But wait, it gets worse: stack overflows are often not due to infinite stack consumption (e.g., recursion) but rather simply going deep on an unusual code path. If stack consumption just goes slightly beyond the base of the stack and there is no memory protection, this is corrupt-and-run -- and you are left debugging a problem that looks every bit like a gnarly data race in an unsafe programming language. And this problem becomes especially acute when memory is scarce: you really don't want a tiny embedded system to be dedicating a bunch of its memory to stack space that will never ("never") be used, so you make the stacks as tight as possible -- making stack overflows in fact much more likely.
Indeed, even with the MPU, these problems were acute in the development of Hubris: we originally put the stack at the top of a task's data space, and its data at the bottom -- and we found that tasks that only slightly exceeded their stack (rather than running all of the way through its data and into the protection boundary) were corrupting themselves with difficult-to-debug failures. We flipped the order to assure that every stack overflow hit the protection boundary[0], which required us to be much more intentional about the stack versus data split -- but had the added benefit of allowing us to add debugging support for it.[1]
Stack overflows are still pesky (and still a leading cause of task death!), but without the MPU, each one of these stack overflows would be data corruption -- answering for us viscerally what we "need the MPU for."
[0] https://github.com/oxidecomputer/hubris/commit/d75e832931f67...
[1] https://github.com/oxidecomputer/humility#humility-stackmarg...
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Writing embedded firmware using Rust
In addition to Cliff's talk/blog -- which are absolutely outstanding -- I would recommend listening to the Twitter Space we did on Hubris and Humility last week.[0] It was a really fun conversation, and it also serves as a bit of a B-side for the talk in that it goes into some of the subtler details that we feel are important, but didn't quite rise to the level of the presentation. And of course, be sure to check out the source itself![1][2]
[0] https://www.youtube.com/watch?v=cypmufnPfLw
[1] https://github.com/oxidecomputer/hubris
[2] https://github.com/oxidecomputer/humility
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Hubris - OS for embedded computer systems
Humility (the debugger)
slint
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Ask HN: Why would you ever use C++ for a new project over Rust?
Did you get a chance to check https://slint.dev?
Disclaimer: I work for Slint
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Deno in 2023
Currently, we do it by using binaries through napi-rs so we can bring in a window using the platform native API. And then we do some hack to merge the event loops.
But if Deno supports bringing up a window directly, this means we can just ship wasm instead of native binary for all platform. And also I hope event loop integration will be simplified.
Although we'd also need more API than just showing a window (mouse and keyboard input, accessibility, popup window, system tray, ...)
[1] https://slint.dev
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Slint GUI Toolkit
Rich Text content is not yet implemented. This is tracked in https://github.com/slint-ui/slint/issues/2723
Thanks for reporting the broken link. Fixed in https://github.com/slint-ui/slint/commit/9200480b532f49007d2...
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slint VS rinf - a user suggested alternative
2 projects | 24 Jan 2024
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A 2024 Plea for Lean Software
With Slint (https://slint.dev) we're trying to make a lightweight toolkit that doesn't use HTML/CSS. And that you can program either from low level languages such as C++ or Rust. As well as with higher level language such as JavaScript, and we want to extend to python too.
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Immediate Mode GUI Programming
I haven't. I was just searching for a GUI library that was Bevy-compatible and slint isn't at the moment: https://github.com/slint-ui/slint/discussions/940
Sorry!
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Why the M2 is more advanced that it seemed
Trying to do that with Slint: https://slint.dev
- 9 years of Apple text editor solo dev
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The Linux graphics stack in a nutshell, part 1
You can do that with Slint (https://slint.dev) and its linuxkms backend. No need for a xorg server or wayland compositor, just run the application made with Slint from the init script.
- Qt 6.6 and 6.7 Make QML Faster Than Ever: A New Benchmark and Analysis
What are some alternatives?
tock - A secure embedded operating system for microcontrollers
tauri - Build smaller, faster, and more secure desktop applications with a web frontend.
esp32-hal - A hardware abstraction layer for the esp32 written in Rust.
iced - A cross-platform GUI library for Rust, inspired by Elm
hubris - A lightweight, memory-protected, message-passing kernel for deeply embedded systems.
egui - egui: an easy-to-use immediate mode GUI in Rust that runs on both web and native
fathom - 🚧 (Alpha stage software) A declarative data definition language for formally specifying binary data formats. 🚧
lvgl - Embedded graphics library to create beautiful UIs for any MCU, MPU and display type.
xsv - A fast CSV command line toolkit written in Rust.
dioxus - Fullstack GUI library for web, desktop, mobile, and more.
InfiniTime - Firmware for Pinetime smartwatch written in C++ and based on FreeRTOS
cxx-qt - Safe interop between Rust and Qt