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Getting started with the Nix ecosystem

What is this article about?

When I first started to learn how to use NixOS, the Nix package manager, and how to work with the Nix language, I was overwhelmed. While it did not take me too long to (sort of) get into it, it was not the most pleasant experience. I would say that there is not really a single source of truth, like Arch Linux users have with the ArchWiki, where you can basically look up everything. Instead, the information is spread across many different sources, which can make it difficult for beginners to find out how to do what they want to do.

The "modern nix CLI", also known as "nix3 cli", is another thing that can cause confusion when you are just starting your nix journey. There are some commands that look almost exactly the same, such as nix shell compared to nix-shell or nix-build compa

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tags
Android Android Things

Set the NTP server of your android device

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package xyz.faber;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.PropertyNamingStrategy;
import com.fasterxml.jackson.databind.cfg.MapperConfig;
import com.fasterxml.jackson.databind.introspect.AnnotatedField;
import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;
import com.fasterxml.jackson.databind.introspect.AnnotatedParameter;
import org.junit.Test;

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# /etc/nixos/configuration.nix
{ config, pkgs, ... }:

{
  imports =
    [ 
      ./hardware-configuration.nix
    ];

  boot.loader.systemd-boot.enable = true;

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{
  description = "A nixos cloudinit base image without nixos-infect";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs";
  };

  outputs = { self, nixpkgs }:
  let
    system = "x86_64-linux";

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OpenSSL 🔐

Install

Install the OpenSSL on Debian based systems

sudo apt-get install openssl

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(require 'iimage)
(autoload 'iimage-mode "iimage" "Support Inline image minor mode." t)
(autoload 'turn-on-iimage-mode "iimage" "Turn on Inline image minor mode." t)
(add-to-list 'iimage-mode-image-regex-alist '("@startuml\s+\\(.+\\)" . 1))

;; Rendering plantuml
(defun plantuml-render-buffer ()
  (interactive)
  (message "PLANTUML Start rendering")
  (shell-command (concat "java -jar ~/Downloads/plantuml.jar " 

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Talon Voice Commands Cheatsheet

This is a demo for how to get a cheatsheet of all Talon voice commands.

To recreate what I did:

1. Have talon installed on your computer following the instructions at talonvoice.com
2. Paste both the cheatsheet.py and cheatsheet.talon into the user directory of ~/talon. This makes these scripts available to talon.
3. Open the talon repl and type

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user.letter

command word	user.letter
air	a
bat	b
cap	c
drum	d
each	e
fine	f

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{
  inputs = {
    nixpkgs.url = github:nixos/nixpkgs/nixos-unstable;
    flake-utils.url = github:numtide/flake-utils;
    rust-overlay.url = github:oxalica/rust-overlay;
  };

  outputs = { nixpkgs, flake-utils, rust-overlay, ... }:
    flake-utils.lib.eachSystem ["x86_64-linux"] (system: let
      pkgs = import nixpkgs {