migrate from markdown to djot

Also uses PL badges and icons added as djot
filters/renderers.

uses.dj

@@ -0,0 +1,46 @@
+# Computer stuff I use
+
+There are [lots of pages](https://uses.tech) like this one showing developer setups.
+
+## Software
+
+### OS
+
+I've used different Linux systems on my machines, mostly [Arch Linux][] on my laptop.
+I recently joined the [_NixOS cult_ ❄️][NixOS], maybe you should too 👀.
+My handphone runs on [GrapheneOS][].
+
+### Apps
+
+- *Editor*: helix
+- *Terminal*: alacritty, ghostty
+- *Font*: JetBrains Mono
+- *Shell*: zsh
+- *Prompt*: starship
+- *Shell history*: atuin
+- *Other utils*: zoxide, direnv, rg
+- *Web browser*: Firefox, Vanadium
+- *VPN*: Tailscale, Zerotier
+- *DNS*: Self-hosted [Unbound][]
+
+## Hardware
+
+### Computers
+
+My laptop is an ASUS VivoBook (Intel i7).
+I run some services on a Raspberry Pi 4B (with 4Gb of RAM), of course under NixOS 🙂.
+My handphone is a Pixel 7a.
+
+### Keyboard
+
+I built a split mechanical keyboard, the (Ferris) [Sweep][] LP, which I only use at home.
+
+### Audio
+
+todo!()
+
+[Sweep]: https://github.com/davidphilipbarr/Sweep
+[GrapheneOS]: https://grapheneos.org
+[Arch Linux]: https://archlinux.org
+[NixOS]: https://nixos.org
+[Unbound]: https://nlnetlabs.nl/projects/unbound/about