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PieFed be like
(thelemmy.club)
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this post was submitted on 28 Dec 2025
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If this is a dig at Lemmy, Lemmy uses Rust. You'd know that's a popular language if you've kept up with programming news anytime in the last 5 years.
Notice how the OP specifically said well-known and widely used. Yes Rust is currently cool, but way way more people can actually work productively with Python.
Wait… PieFed uses Python? Holy shit… as someone who regularly uses both, Rust is such a better fit for something like this on this scale. That's actually one of the best arguments I've heard against PieFed
From what I understand, the limitation in speed/scalability for lemmy/piefed/mbin is the database, not the back end language, so the specific language used appears to matter much less than it would seem.
Piefed has some some pretty great features over lemmy, but for the sysadmin side of things, it has a noticeable improvement regarding network resource usage, and potentially raw speed.
Piefed also appears to be less buggy overall. As an example, Lemmy has suffered from a persistent memory leak that's been around for years, with no fix in sight. You can see the opinion of our sysadmin who has been running slrpnk.net (lemmy instance) for 5 years now to find that just because lemmy is built in a memory-safe language, it doesn't automatically translate to a good experience.
Yeah, hopefully it will move forward faster than the snail pace of rusty lemmy.
I bet more people will be able to tinker with the python sources than rust sources...
Those kind of things do matter!
Python and bootstrap. Honestly, piefed feels like someone's final cs50 project - which is why I'm hesitant to jump.
bootstrap 🤢🤮
Lemmy is so heave that @jeena@piefed.jeena.net replaced his lemmy instance with a piefed instance and it's using less resources. I like Rust, but like every tool, it has to be used properly.
Heave, ho!
Is the project called PyFed?
Why would it be a better fit?
Resource efficiency is important for self hosted software. That's one reason matrix is a pita to self host, for example.
I think for a large project Rust should be easier to manage in the long run.
Well, you've got another think coming.
Also it’s safer and much faster than python.
I did notice. If Rust isn't "widely used", then I'll need to let Apple, Microsoft, Google, Amazon, Mozilla, Huawei, Meta, the Linux kernel devs, and a fuckload of open-source projects know that they actually don't exist.
It's plently widely used, and unlike ~~a scripting language~~ (edit: Python), it's performant – as server software should be. Rust is not a hard language to use or learn either, and it's great for large projects.
As someone who routinely works on a complicated C++ codebase, had to use C, Python, and Java all the time through school, has had to use absolute trash like JavaScript and PHP, and has dabbled in languages similar-ish to Rust like Go and Swift, Rust to me is simple to work with.
The compiler is extremely helpful when I do something wrong, it has sensible conventions like immutability by default, Cargo is a streamlined build system, I've found the documentation easy to read, I actually prefer curly brace-delimited scopes to tabbed ones and explicit type declarations for readability, and in the obvious comparison to C/C++, Rust lacks extremely common memory footguns.
Obviously compared to Python – with its mountain of syntax sugar and a library for everything – Rust is going to be more difficult. But for languages in general? Rust is not at all one of the harder ones I've learned or used.
(Btw I hate Java; it's the worst language I've ever used.)
This is the most fediverse thread I've seen in years
I'm surprised you put C in there. Its limited vocabulary does mean you don't have to deal with e.g. C++'s 50 million ways to do something, but this combined with a lack of guardrails makes it agonizingly difficult to do a lot of basic things – most notoriously dealing with strings.
I actually consider C a good beginner language, but only in the sense that 1) it does have that simple toolkit, 2) it and its descendants are widely used, and most importantly 3) the bullshit C makes you deal with gives you a better understanding of what higher-level languages do for you automatically and why. To me, it's probably the hardest mainstream language to learn after maybe something like x86 or ARM assembly (which, for better or worse, hit points 1 and 3 even harder than C).
I generally agree though that Rust has always been somewhere in the middle for me.
Which paradigm do you even refer to? Lifetimes? A C++ developer who cannot understand lifetimes (at least conceptually) in a day is a terrible developer.
I would know, I work with such people.
To answer your first question, I've definitely spent days of my life trying to fix c++ templates because the compiler won't fucking tell me what's actually wrong. It loves telling me some unrelated copy constructor is deleted though... And all of that is actually worse with new stuff like ranges. Which are great on paper, but are a maintainability nightmare.
I had to do c++ template metaprogramming (insane, stay away from it at all costs), Rust makes me think of that in a more better modern way.
Easy? I wouldn't say, and the compiler is slow ☺️
I love python but only as a scripting language because of GIL and the ridiculous performance (and it's not really suited for "large" projects). But if you need a little thing it's so fast to spin up.
Disclaimer: am old C/C++ dev.
While I agree with the general sentiment, scripting languages are perfectly fine to use for server software. Would you call hackernews slow? Its been running on lisp (originally Arc, now common lisp) for its entire existence. Another fun example of popular interpreter is, y'know, the JVM.
Common Lisp could be compiled, so not the best example.
Lua is a way better example, since Lua scripts often finish in the time it takes Python to get going at all. And that's with interpreted Lua, without JIT. I once straight up had to recheck if I left the dummy static output in there instead of calling my script, because the result was appearing instantly.
There's also Fennel, a Lisp compiled to Lua on the fly. Since Lua is so snappy, the compilation overhead is unnoticeable.
Performance is an attractive metric because it's something you can put a number on. It's measurable, so comparisons are easy.
But there are so many other metrics that are more important.
Still, https://leafo.net/lapis/ looks like something I'd like to try sometime. I don't know anything about the Lua web framework ecosystem, that's just the first search result I found. Do you have any recommendations?
I would be surprised if you'd argue that more devs can write Rust than Python.
Web servers spent most of their time with IO, because the real work is mostly done by the DB. That's why especially Node is very fast and influential design wise. But PHP, Ruby and Python are all very popular and valid choices for web servers. In the end, if you need real performance you have to scale horizontally anyways. And the small gains you make in a compiled language matter even less.
Coming from a Python and Java background Rust is way harder to learn. Don't get me wrong, i like Rust, but it feels way harder. But i agree that its great for large projects and performance-wise!
I found this essay a great read on that point: https://vorner.github.io/difficult.html
Rust is a superb language, but it is famously not easy to learn.
Way more people work with python, productively is arguable
It’s not popular if you rate it by actual usage, which is probably more meaningful than it seeming kind of cool.
I can see those goalposts move right before my eyes!
I have no dog in this fight - flame away - but I'm offended by the sparkle-junkies calling [arbitrary non-rust language] old on a daily basis and somehow deciding some arbitrary measure of popular+shiny is a replacement for 'good' in some bizarre idiocratic glorification of naïveté .
I like the way you phrase things there, pal. 👌
- source, for 2025
it's less about the language than the choice to be welcome to contributors - especially older people who have more free time to devote to unpaid volunteer development, rather than younger people who know Rust but are already working 2-3 jobs
more to the point it's meant in fun :-P
If it’s Python, that’s 58%. SQL is 59% and I would be pretty surprised if piefed is pure SQL
This reasoning is really bizarre, btw. Never once heard of someone choosing software because it appealed to older developers.
I’m an older developer. Rust seems so much more interesting to me than yet another python service. Oh boy is it Django??
Piefed is flask + python. Its very easy to read in my opinion. Very boring code. I knew nothing about it but threw a PR in there just for fun.
Django is my goto for personal projects too. And at work we use fastapi. They all kinda blend together now in 2025/26.
Personally I stopped caring about languages a decade into my career. As long as its boring and standard-ish, I'm happy. If it takes me a ton of time getting every dependency under the sun, the project is unstable/constantly breaking, and/or requires me a degree to even look at it, then im not going to contribute.
Lemmy is harder to read as a project than piefed. But both are good. Its not a "vs" we should just let both communities do their thing and be happy someone on their weekends wants to support our sorry asses.
Certified facts!
A true pragmatist
Is that the one I keep seeing kneehigh sock memes about?
For rust you need leather socks.
leather kneehighs?
Rust is a good low level language. I'm not sure if it fits this species task the best.
As others are saying here, the real work lies in the underlying database system rather than the actual back-end. Yes Rust is a good system language, but that didn't stop Lemmy from having a memory leak, and Python is also good(-ish), at least enough to make it happen. Possibly not as well at larger scales... but with subscribership falling rather than rising across the Threadiverse, that's not really a major concern at the moment.
Especially compared to features that will attract those new people, and thereby content, if such people did end up coming.