medv medv

Setup full disk encryption on a Hetzner cloud CX42 machine. No fancy SSH unlock: you have to go to their web based terminal to enter the disk password on boot.

Notes:

Their web based terminal is /weird/. You can paste things, but it looks like it's set up for a german keyboard, and many characters change ("http://" into "http;//"), sometimes it converts everything to lowercase after a while, sometimes it enters some capslocks mode. I ended up typing as much as possible by hand, and only use alphanumeric passphrases so there are no surprises when copy-pasting those.
The (qemu) virtual machine doesn't use EFI, but Legacy Boot. Most setup instructions I found are for EFI systems.

there we go

In the Hetzner UI click the server in the list, go to tab [ISO Images], search for "nix", and mount "NixOS 24.05 (x86_64/minimal)"
Reboot, and open the terminal. (the's a button on the top with [>_], which is a shortcut for the terminal)

Screen sharing on Hyprland (Arch Linux)

Talos on Firecracker

Build Firecracker from source (it's fast and easy, builds in docker): https://github.com/firecracker-microvm/firecracker/blob/master/docs/getting-started.md#building-from-source
Adjust /dev/kvm permissions: https://github.com/firecracker-microvm/firecracker/blob/master/docs/getting-started.md#prerequisites
Build Talos, you will need build/vmlinux & build/initramfs.xz.
Prepare configs for Talos: osctl config generate fire https://172.16.0.2:6443. Make following changes to the config: add resolvers to the machine.network config: nameservers: ["8.8.8.8", "1.1.1.1"] (IP config will come from kernel args), update install location: install: disk: /dev/vda (default is sda).

Moved to Shopify/graphql-design-tutorial

How to use AWS Fargate and Lambda for long-running processes in a Serverless app

Build an ETL job service by fetching data from a public API endpoint and dumping it into an AWS Redshift database.

Published on Jan. 11th, 2018 at https://serverless.com/blog/serverless-application-for-long-running-process-fargate-lambda/

AWS dropped so many serverless announcements at re:Invent, the community is still scrambling to make sense of them all. This post is all about AWS Fargate.

In this article, I will show you how to create an end-to-end serverless application that extracts thumbnails from video files. But, oh no, processing video files is a long-running process! Whatever will we do?

Why we dropped Lerna from PouchDB

We dropped Lerna from our monorepo architecture in PouchDB 6.0.0. I got a question about this from @reconbot, so I thought I'd explain our reasoning.

First off, I don't want this post to be read as "Lerna sucks, don't use Lerna." We started out using Lerna, but eventually outgrew it because we wrote our own custom thing. Lerna is still a great idea if you're getting started with monorepos (monorepi?).

Backstory:

https://pouchdb.com/2016/01/13/pouchdb-5.2.0-a-better-build-system-with-rollup.html

	###
	### [2023-06-19] UPDATE: Just tried to use my instructions again on a fresh install and it failed in a number of places.
	###. Not sure if I'll update this gist (though I realise it seems to still have some traffic), but here's a list of
	###. things to watch out for:
	### - Check out the `nix-darwin` instructions, as they have changed.
	### - There's a home manager gotcha https://github.com/nix-community/home-manager/issues/4026
	###

	# I found some good resources but they seem to do a bit too much (maybe from a time when there were more bugs).
	# So here's a minimal Gist which worked for me as an install on a new M1 Pro.

	{ pkgs, lib, config, ... }:

	let
	inherit (lib) mkOption types;

	secretsModule = {
	options.path = mkOption {
	type = types.path;
	example = lib.literalExample "pkgs.hello";
	description = ''

	function get(path, obj, fb = `$\{${path}}`) {
	return path.split('.').reduce((res, key) => res[key] \|\| fb, obj);
	}

	function parseTpl(template, map, fallback) {
	return template.replace(/\$\{.+?}/g, (match) => {
	const path = match.substr(2, match.length - 3).trim();
	return get(path, map, fallback);
	});
	}

	{
	"tilejson":"2.0.0",
	"tiles":["http://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/?Layer=0&Style=default&TileMatrixSet=EPSG:3857&Service=WMTS&Request=GetTile&Version=1.0.0&Format=image/png&TileMatrix={z}&TileCol={x}&TileRow={y}"]
	}