enarx VS rust-ctor

Do you mean a trusted execution environment, like Intel SGX? GPUs live outside the TEE, so, no, I think what you're asking for isn't possible. But for doing TEE stuff in Rust, see https://enarx.dev/ .

Keep in mind that I'm using "OS" here loosely; it's a bare-metal program that exposes a subset of Linux syscalls so that the interpreter (which itself is compiled for Linux) can run in the extremely strange context that we target. It's still early days so I won't spend too much time shilling it, but all the code is open source and lives under the umbrella of the Linux Foundation: https://enarx.dev/

What do you use to run Wasm on untrusted systems? Is it Enarx by chance?

Here's the project: https://enarx.dev/

There's not much to say about the company just yet, but I'll note that all of our code is open source and the main project itself that we develop and that does most of the magic lives under the Linux Foundation's Confidential Computing Consortium, it's called Enarx: https://enarx.dev/ . TL;DR: use fancy new CPU features to run workloads in the cloud where both the program itself and all the data it processes are hidden from the cloud provider.

This is my second blog of the Outreachy'22 internship. Before this Internship, I never had any strong development experience. This is the opportunity that enabled me to work across a really good technical Project i.e. "The Enarx Project".

The Enarx Project is the part of Confidential Computing Consortium from the Linux Foundation, the folks here are very collaborative and welcoming. As a fellow mentee, I'd like to thank the Community Manager- Nick Vidal sir. In addition to me, he provided the right guidance to all of us contributors and mentored us to the right path. There were many folks who were more proficient than me and were making up numerous commits, but I tried my level best and was focused to contribute as much as possible and ended up making the maximum number of contributions.

For context, see rust issue #47384 and ctor issue #27.