Hacker News: Rovanion

New comment by Rovanion in "Instant database clones with PostgreSQL 18"

Rovanion — Tue, 23 Dec 2025 13:44:22 +0000

You, is an interesting word to use given that you plagiarized it.

New comment by Rovanion in "How the U.K. broke its own economy"

Rovanion — Tue, 04 Mar 2025 07:49:54 +0000

This article is plain wrong. It ignores that the largest amount of housing ever built in Britain was council housing post war through to Thatcher.

New comment by Rovanion in "Xkcd: Greenhouse Effect"

Rovanion — Mon, 26 Feb 2024 11:59:36 +0000

The coal used for reduction of iron ore to iron can be replaced with hydrogen through direct reduction. See Hybrit which has working industrial scale demonstration plant today, though at reduced capacity. Full capacity plants are planned in multiple locations by 2036.

New comment by Rovanion in "VidCutter: A program for lossless video cutting"

Rovanion — Sun, 20 Aug 2023 17:29:50 +0000

Does anyone know of a software that can do motion detection and spit out timestamps in a video for use in ffmpeg or the like?

New comment by Rovanion in "Google Maps has become an eyesore"

Rovanion — Mon, 07 Aug 2023 13:14:21 +0000

The solution is simple although cumbersome, disallow cars though The village.

New comment by Rovanion in "Ericsson to WhatsApp: The Story of Erlang"

Rovanion — Fri, 07 Jul 2023 13:00:28 +0000

It would still have Musk.

New comment by Rovanion in "Remote work is gutting downtowns"

Rovanion — Tue, 06 Dec 2022 14:05:01 +0000

Walkable cities with mixed use development. Change the use of downtown.

New comment by Rovanion in "MIT graduate students vote to unionize"

Rovanion — Sat, 09 Apr 2022 13:10:19 +0000

Coming from Sweden I'm surprised they aren't already. Do you also not have student unions to represent you until you reach undergrad?

New comment by Rovanion in "PRQL – A proposal for a better SQL"

Rovanion — Mon, 24 Jan 2022 22:07:06 +0000

IRC tells me this has been fixed now.

New comment by Rovanion in "Clojure Macros and Metaprogramming"

Rovanion — Wed, 15 Dec 2021 23:52:00 +0000

I think the lack of reader macros really help here. Macros in Clojure are much more "functions that run at compile time" rather than "look at this fun DSL I threw together".

What I think it comes down to though is adherence to convention. A preference hierarchy has grown together with Clojure and it goes:

1. Can it be expressed using data structures, do that. For example a map/dictionary lookup. 2. If that fails, express your more complex idea using a function. 3. If you absolutely must, write a macro.

You usually end up with very few macros except for those in the standard library, and those you end up with are more commonly of the convenience kind. One example would be the standard web routing library of the early 10's called Compojure that relied heavily on macros where my current favourite Reitit uses just data.

New comment by Rovanion in "GC progress from JDK 8 to JDK 17"

Rovanion — Wed, 24 Nov 2021 15:07:48 +0000

Absolute gc throughput and overhead.

New comment by Rovanion in "Raspberry Pi 4 achieves Vulkan 1.1 conformance, gets GPU performance boost"

Rovanion — Sat, 30 Oct 2021 19:07:29 +0000

They won't. Their margins on the services side are obscene so getting people into that ecosystem is worth much more than the sales of some processors.

New comment by Rovanion in "3,000 eggs abandoned after drone scares birds in California"

Rovanion — Sun, 06 Jun 2021 03:43:47 +0000

Perhaps they should have?

New comment by Rovanion in "Guide: Full Wayland Setup for Linux"

Rovanion — Wed, 10 Mar 2021 19:14:09 +0000

News just came out they will support it in the next release.

New comment by Rovanion in "“I will slaughter you”"

Rovanion — Sat, 20 Feb 2021 09:55:43 +0000

New comment by Rovanion in "Blender 2.80 release candidate"

Rovanion — Fri, 12 Jul 2019 14:37:57 +0000

I know it sucks, but at least it sounds better than giving up an entire hobby: Couldn't you just stay on the last working version of Blender?

New comment by Rovanion in "Storm 2.0"

Rovanion — Sun, 02 Jun 2019 10:57:24 +0000

While it is true that Java is statically typed and Clojure is dynamically typed it is perhaps one of the less important differences between the two languages. If you in fact would like to add a static type system on top of Clojure there is a way to do that: Typed Clojure.

https://typedclojure.org/

New comment by Rovanion in "Unexpected Surge in Global Methane Levels"

Rovanion — Sun, 26 May 2019 11:36:01 +0000

You got to start with what's within your control, right? Then you may continue with others. But until you do that you're a hypocrite.

New comment by Rovanion in "SimpleSSR: Server-Side Rendering at Scale"

Rovanion — Wed, 31 Oct 2018 22:50:45 +0000

Hi, I just watched through the first two parts of your three part intro to Texas on YouTube.

I noted that you restart the server process each time you make a change to the elixir application and coming from the Clojure universe I have the following question: Is it possible to insetad of restarting the server program each time you make a change to it's source code instead modify the program as it is running?

This is usually how I work on my Clojure programs and I find that doing that which results in near instant feedback while I am programming.

New comment by Rovanion in "Native Clojure with GraalVM"

Rovanion — Tue, 18 Sep 2018 08:36:14 +0000

Did Leiningen compile through Graal without modification?