Viewing profile — duijf

> It's just that function calls can only appear in very limited places in the program (only inside `steps`), and to define a function, you have to create a Git repository. FYI ther…

All the Nix commands that take an 'installable' can take GitHub URLs. For instance: $ nix run github:NixOS/nixpkgs#hello Hello world! That command will download nixpkgs from GitHub…

Wow it's great seeing this here again. The first uni assignment I made for CS101 was a Mandelbrot set renderer. I got it to work, but that's all the merit it had. I didn't have a c…

Line of business, I think

> Ports below 1024 can be opened only by root. Or processes running with the CAP_NET_BIND_SERVICE capability! [1] Capabilities are a Linux kernel feature. Granting CAP_NET_BIND_SER…

Working on that API gateway with you was a lot of fun :) To be fair, we did run into some issues with the GHC garbage collector performance initially. That took some time to figure…

Channable has a tech blog where you can find more details. The most popular ones discussing technology choices (with HN discussion): - Haskell ( https://news.ycombinator.com/item?i…

Here's a way you can do this with git. This trick relies on `git merge --allow-unrelated-histories`. Assuming you have repos `foo` and `bar` and want to move them to the new repo `…

Form a corporate perspective: 2FA would still force a unique secret per user. That can be useful when your users tend to reuse passwords for different sites or choose poor ones. I …

Thanks for working on this! I've been using this on and off over the last two months (tend to forget I have it installed and fall back to old habits), but it's really really cool s…

More likely May 2021, the date format at the bottom of the post is probably YYYY-MM-DD as common in Germany where the author seems to be located. EDIT: If Germany has the same conv…

> What is the story in nix for packaging untagged branches of software Most Nix packages define their sources using `src`. You can pass in whatever you want. E.g. fetch a tarball f…

> Also, regarding DevOps, the tooling around Nix makes it a little brittle for anything event based--rapidly changing configurations on the fly due to network conditions (Consul, A…

There are numerous valid HTTP payloads that are larger than a single TCP/UDP packet. Ordering is important in these cases.

From https://github.com/ghc-proposals/ghc-proposals/blob/master/p... .g is a field selector. f.g is field selection of a record. f . g is function composition. f. g is function com…

My favorite real world example of how you can use these techniques to reduce bugs: -- Bad. data Session = Session { authenticated :: Bool , challenge :: Maybe Challenge , userId ::…

Rust looks pretty cool.

Re availability: We had a hard time keeping the system based on Spark available. There were days when the cluster would freak out multiple times in a single day. The 'fix' would be…

> Reading this article it seems like yet another example of "you don't have big data". Yes definitely. This thing was a big exercise in "You aren't going to need it". > so in the e…

If you haven't seen https://haskell-at-work.com/episodes.html yet, I can recommend it