Typically this is true, but it’s certainly possible to get comparable performance with functional style

It’s possible, but you have to specifically write code that’s fast, rather than idiomatic or ergonomic, and you have to know what you’re doing. At that point, you may have been better off writing it in something else. I feel like OCaml is good at this because it allows you to write abstractions and main control flow in a functional way and hot paths in an imperative way without switching language, but so is Rust.

Carp, which I linked above, basically uses the same approach to memory management as Rust. It doesn’t rely on GC.

I’ll take a look, thanks!

I also find that for most cases it really doesn’t matter all that much unless you’re in a specific domain like writing drivers, making a game engine, etc. Computers are plenty fast nowadays, and ergonomics tend to be more important than raw performance.

I mostly agree with you, e.g. Haskell and Clojure, despite being “slow”, are plenty fast for what they’re used for. On the other hand, I’m very much annoyed when “user-facing” software takes way too long to load or do simple tasks. Java in particular is pretty bad at this: JOSM (Java OpenStreetMap editor) takes longer to load than my entire desktop startup, including a window manager and browser. Unfortunately it’s also the best editor around, so I pretty much have to use it to edit OSM, but it still annoys me to no end. Unnecessary computations, IO inefficiencies and layers of wrapping also affect the power consumption quite noticeably.

Modern C compilers are a fascinating blend of functional and imperative, that’s true; and I didn’t say that C is “close to how the modern architectures work”. However, mainstream modern architectures are almost always engineered with C in mind primarily, and this is also acknowledged in the article you’ve linked. Rust, having a lot of similarities to C in terms of its underlying memory model, calling conventions, and control flow primitives, can often benefit from those hardware patterns and optimizations in a way that’s more difficult to replicate with a functional language (especially so given most of them are GC-d due to their memory model). The closest I’ve seen in terms of easy-to-write-quick-code is OCaml, but even there the fast paths are often written in a very much imperative style. Idris2 also seems promising if they manage to get a GC-less mode working. Maybe also Roc, but I’ve not taken a look at it yet.

Note that I write all of this as someone spending a lot of their work time programming in a functional language (Haskell), with Rust being mostly for hobby stuff. It just always surprises me how much easier it is to write fast code in Rust, and yet also how much of my Haskell intuition was applicable when I was learning it.

I agree that they fit different niches! My point was that with modern CPU architectures, imperative languages make it much easier to write fast&efficient code just because the hardware was pretty much engineered with C in mind. IMHO Rust offers the best of both worlds when it comes to systems/low-level dev.

TBH Rust is pretty nice, it borrows (pun intended) a lot of ideas from the functional world (algebraic data types, traits, closures, affine types to an extent, composition over inheritance, and the general vibe of type-driven development), but it’s much easier to write fast, efficient code, integrate with decades of libraries in imperative languages, and the ecosystem somehow feels mature already.

So, here’s my attempt

The first portion (^.?$) matches all lines of 0 or 1 characters.

The second portion (^(..+?)\1+$) is more complicated:

1. (..+?) is a capture group that matches the first character in any line, followed by a smallest possible non-zero number of characters such that (2) still matches (note that the minimum length of this match is 2)
2. \1+ matches as many as possible (and more than 0) repeats of the (1) group

I think what this does is match any line consisting of a single character with the length

• divisible by some number (due to the more than 0 condition in (2), so that there have to be repeats in the string), that’s not
  • 1 (due to the note in (1), so that the repeating portion has to be at least 2 characters long), or
  • the length itself (due to the more than 0 condition in the (2), so that there is at least one repetition)

Therefore, combined with the first portion, it matches all lines of the same character whose lengths are composite (non-prime) numbers? (it will also match any line of length 1, and all lines consisting of the same string repeated more than one time)

90s-late 00s cars are actually on repairability in my experience, because they already have computers which help you diagnose failures easily with a $20 OBD2 scanner (this saved my ass a couple of times, when I could almost immediately see the error whenever my car died, fiddle or re-plug the wiring of the failed component and keep going), and they don’t yet have all the over-complicated, designed-to-fail, hard-to-reach crap that a lot of new cars have.

I haven’t used it in a while, but I think it just sends you an SMS with a code that you can enter manually, so yeah it works on devices without a SIM

I think you should still pass --cmd Hyprland to it, no?

I’ve been using nheko as my Matrix client and main Telegram client via mautrix-telegram for the past 4 years. I fixed a couple of annoying bugs myself, and it has been working great for me since. Shame your experience isn’t the same, maybe you can report the bugs to the devs (who are amazingly responsive).

There are a couple of non-electron matrix clients I enjoy: gomuks (TUI, therefore really light-weight), and nheko (Qt-based native app that’s about as snappy as telegram, but with less animations and crap).

Yep, that has actually been a dream of mine for a while, I went as far as downloading the source code and setting up the build environment, but then got a bit overwhelmed by the task. It would be amazing to have this.

I think it depends a lot on where you are. Where I am, the government (kinda unofficially) provides excellent quality (<10 cm/px in some cities, and <50cm/px for the entire country) orthographically adjusted aerial imaging, that’s a lot better than any commercial solution.

Does not seem to cache the satellite tiles for usage offline.

Did you use the “Download Map” option? It definitely works offline for me after I download it.

OsmAnd does support this now. You need to activate the overlay/underlay you want to download, press&hold anywhere on the map, then in the menu do Actions > Download Map.

OsmAnd does support this. You need to activate the overlay/underlay you want to download, press&hold anywhere on the map, then in the menu do Actions > Download Map.

Hey, you can add the satellite imagery you need by doing Configure Map > Underlay > Underlay map > Add more. Then you can select the imagery you just added from that same menu.

After you’ve selected the underlay map, you can pre-download the images for offline use by viewing the part of the map you want to download, touching&holding anywhere on it, then doing Actions > Download Map.

Hope that helps.

Me

My gf

Thanks! The documentation team is busy working on it right now :) You can check out https://nix.dev and https://wiki.nixos.org - both are relatively new. There are also lots of improvements in developer documentation for Nix and nixpkgs in the last year.

“NixOS project” did not call anyone nazis, there was no “purge”, this article is clickbait and ragebait. What one contributor, however prolific, says, doesn’t represent the entire project.

Nobody forced Eelco (the founder of Nix) to “abdicate”, but there was indeed pressure to step down as the de-facto BDFL put on him by various people. He’s respected as an engineer, architect, maintainer and mentor, but his community management skills were perceived to be lacking, and there were other perceived issues in the community - which boiled down to the fact that a lot of contributors didn’t feel like they could influence the direction of the project. Note that he’s not expelled from the project in any way, he’s still a maintainer of Nix itself, which AFAIU from my interactions with him is what interests him the most, and he’s more or less happy to leave administrative/community stuff to other people.

Then began a process to establish a new governance structure. Currently, we’re up to a stage where there’s now formal community values and a new constitution for the project. There’s an election happening right now, with all active contributors able to become candidates or vote (although the deadline for candidate nominations has passed, so now we can only vote).

Yep, happy that more and more people recognize it for a treasure of features and customization that it is. For me, it’s the best app for trekking, hiking, and offroading there is, even if we consider proprietary stuff like Fatmap and such.