buildroot VS smoltcp

I did it few times. It's so much easier nowadays with https://buildroot.org/

If you dig through the rootfs of the K1 it becomes clear that Creality is using buildroot so we should be able to do that ourselves - at least some of us.

An embedded system like Roku doesn't need to "run everything", it just needs to run their "platform", which is probably quite small. It's pretty trivial to assemble your own OS from "off-the-shelf" components. You can use something like buildroot to spin up a new OS in half a day, using only the components you want. You can also use "smaller" components that have far fewer features, meaning less bugs and less updates.

https://github.com/buildroot/buildroot

> I do this for every Windows installation that is used for similar purposes, like embedded machines that has to run a single application, virtual machines, etc.

Have you tried running Linux for these use cases? This sort of thing is an area Linux excels, in my experience.

When you run Windows, you're in for the whole kit and caboodle. Most of the components are proprietary, closed-source black boxes. You can only poke and prod and test and hope things don't break in unexpected ways.

Conversely, Linux can be easy stripped down to a bare bones kernel and a single statically-linked binary. I can run a useful application on top of Linux with the whole system weighing in smaller than bootmgfw.efi.

Something more complex, but still custom, is easily crafted with Buildroot.

https://buildroot.org/

Have a look at the commit history of Linux or buildroot for nice readable commit histories.

Gentoo could teach you more about what is involved in dependency handling and actual ‘construction’ of a Linux system. But Linux From Scratch is a much better teaching tool for learning this, and even things like Buildroot are arguably better than Gentoo for this because they generally force you to care about a lot of the stuff that Gentoo hides away to make the system nicer to use.

There is also the Rust TCP/IP stack https://github.com/smoltcp-rs/smoltcp which is not mentioned as reference (and it's probably more useful to have a look there than querying ChatGPT).

Trying to dig out a link for you, will edit when I find it; TCP and Layer 4 raw sockets do not play nicely together on many platforms. You’ll probably have to send at the datalink layer and/or use something like https://github.com/smoltcp-rs/smoltcp

This seems close to what you're asking for: https://github.com/smoltcp-rs/smoltcp

A small-ish tcp/ip stack, in rust.

You can look into smoltcp

smoltcp

This here is a kernel including a memory-safe TCP/IP stack (https://github.com/smoltcp-rs/smoltcp/), and not having it crash or be full of security vulnerabilities due to preventable memory corruption is a quality beyond personal language preferences.

Oh, and you also probably want to check out smoltcp, a userspace/"no operating system required" networking stack that we often use in embedded rust.