Brad Parker — Designer + Developer https://bradparker.com Sun, 16 Feb 2020 00:00:00 UT Using Nix to deploy a Haskell web app to Heroku https://bradparker.com/content/posts/2020-02-16-using-nix-to-deploy-a-haskell-web-app-to-heroku.html Deploying Ruby on Rails apps to Heroku has always been a delight, and now that they have a container registry other run-times are similarly delightfully deployable. No build-packs required.

with (import <nixpkgs> {});
dockerTools.buildImage {
  name = "hello";
  contents = [ hello ];
}
]]> Sun, 16 Feb 2020 00:00:00 UT https://bradparker.com/content/posts/2020-02-16-using-nix-to-deploy-a-haskell-web-app-to-heroku.html Brad Parker Home sweet home https://bradparker.com/content/posts/2020-02-12-home-sweet-home.html brad@brad ~ » nix-shell -p figlet brad@brad [nix:shell] ~ » figlet -f smscript nifty o |\_|_ /|/| | |/ | | | | |_/|/|_/|_/ \/|/ |) (|

If you’re like me, you develop on both macOS and Linux and are very much a creature of habit, then this may be of interest. It’s a description of how I arrived at my current approach for maintaining a base development environment across the two platforms.

]]> Wed, 12 Feb 2020 00:00:00 UT https://bradparker.com/content/posts/2020-02-12-home-sweet-home.html Brad Parker Getting close to the conceptual metal https://bradparker.com/content/posts/2020-01-27-getting-close-to-the-conceptual-metal.html Writing software can give us the ability to take a nearly impossibly abstract idea and use it to create a runnable program.

In this post we’re to talk about “fundamental things” and see how much we can build with them.

type a × b =
  forall c.
    (a -> b -> c) -> c

type a + b =
  forall c.
    (a -> c) -> (b -> c) -> c
]]> Mon, 27 Jan 2020 00:00:00 UT https://bradparker.com/content/posts/2020-01-27-getting-close-to-the-conceptual-metal.html Brad Parker Deploying a fully automated Nix-based static website https://bradparker.com/content/posts/2019-11-21-deploying-a-fully-automated-nix-based-static-website.html 
{ config, pkgs, ... }:
let
  repo = builtins.fetchTarball {
    url = https://repo.tar.gz;
  };
in
{
  imports = ["${repo}/module.nix"];

  services."site".enable = true;
}

I can’t promise that this will take you five minutes (it won’t). What I will say is this: if you’d like to learn more about Nix and NixOs then this may be interesting.

]]> Thu, 21 Nov 2019 00:00:00 UT https://bradparker.com/content/posts/2019-11-21-deploying-a-fully-automated-nix-based-static-website.html Brad Parker Servant's type-level domain specific language https://bradparker.com/content/posts/2019-10-05-servant-types.html Haskell has some very interesting type-level features, Servant is a great case-study in how they can be used to build a practical and feature rich library. This post walks through an example in an attempt to become more familiar with its inner workings.

type UsersIndex =
  Get '[JSON] [User]

type UsersShow =
  Capture "username" String
    :> Get '[JSON] User

type UsersAPI =
  "users"
    :> (UsersIndex :<|> UsersShow)
]]> Sat, 05 Oct 2019 00:00:00 UT https://bradparker.com/content/posts/2019-10-05-servant-types.html Brad Parker Let's learn about lenses https://bradparker.com/content/posts/2018-08-21-lets-learn-about-lenses.html 
type Lens s t a b =
  forall f. Functor f =>
    (a -> f b) -> s -> f t

_1 :: Lens (a, c) (b, c) a b
_1 = _

_2 :: Lens (c, a) (c, b) a b
_2 = _

Gaining an understanding of the Lens type has been on my todo list for a long time. So I finally bit the bullet and read up a little. These are (more or less) my notes as I went along.

]]> Tue, 21 Aug 2018 00:00:00 UT https://bradparker.com/content/posts/2018-08-21-lets-learn-about-lenses.html Brad Parker You already know what Monads are https://bradparker.com/content/posts/2017-01-06-you-already-know-what-monads-are.html I sought to understand what the fuss was all about and I’ve now added to the mass of Monad Explainer posts on the internet.

readAFile().then(function (content) {
  return writeAFile(content)
}).then(function (report) {
  console.log(report)
})
]]> Fri, 06 Jan 2017 00:00:00 UT https://bradparker.com/content/posts/2017-01-06-you-already-know-what-monads-are.html Brad Parker Petrichor Ensemble — Gig Poster https://bradparker.com/content/posts/2013-02-08-petrichor.html
Petrichor Ensemble — Gig Poster Detail

Petrichor (/ˈpɛtrɨkɔər/) is the earthy scent produced when rain falls on dry soil. The word is constructed from Greek, petra, meaning ‘stone’, + ichor, the fluid that flows in the veins of the gods in Greek mythology.

— Wikpedia

Petrichor Ensemble — Gig Poster Full
]]> Fri, 08 Feb 2013 00:00:00 UT https://bradparker.com/content/posts/2013-02-08-petrichor.html Brad Parker Brisbane Bicycle Film Festival 2012 — Poster https://bradparker.com/content/posts/2012-10-03-brisbane-bicycle-film-festival.html
Bicycle Film Festival — Poster Detail

I don’t have the original images anymore, but this made a rad gif also…

Bicycle Film Festival — Poster Full
]]> Wed, 03 Oct 2012 00:00:00 UT https://bradparker.com/content/posts/2012-10-03-brisbane-bicycle-film-festival.html Brad Parker Design futures — Typography https://bradparker.com/content/posts/2011-06-01-design-futures.html
Design Futures — Monogram
Design Futures — Full

Everything is connected, and the way it connects is kinda complex. I’d like to be more aware of my connections to people and the networks they’re a part of.

As it stands these are all mock-ups rendered in SketchUp, the dream plan is to get this rendering in the browser from user input. Wild scaffolding.

]]> Wed, 01 Jun 2011 00:00:00 UT https://bradparker.com/content/posts/2011-06-01-design-futures.html Brad Parker