Sven Sporer sohooo

PostgreSQL is Enough

Background and Cron Jobs

Linux Desktop on Apple Silicon in Practice

NOTE: Time flies, and it's been almost five years(!) since I wrote this. Beaware the text below is now outdated (e.g., now Asahi Linux has graphics acceleration even better than this). The commands listed are up-to-date.

I bought M1 MacBook Air. It is the fastest computer I have, and I have been a GNOME/GNU/Linux user for long time. It is obvious conclusion that I need practical Linux desktop environment on Apple Silicon.

Guide to your first Tree-sitter grammar

NOTE: The Tree-sitter API and documentation has changed and improved since this guide was created. I can't guarantee this is up to date.

About

Tree-sitter is the new way Atom is providing language recognition features, such as syntax highlighting, code folding, autocomplete, and more. In contrast to TextMate grammars, which work by regex matching, Tree-sitter will generate an entire syntax tree. But more on that can be found in it's own docs.

Here, we look at making one from scratch.

A top-down look into Elixir (for Rubyists)

Phoenix (as "Rails for Elixir")
- Rails and Phoenix can get suspiciously similar
- A code sample:
controller.rb

	#!/bin/bash

	# Colors
	RED='\033[0;31m'
	GREEN='\033[0;32m'
	NO_COLOR='\033[0m'
	BLUE='\033[0;34m'
	YELLOW='\033[0;33m'
	NO_COLOR='\033[0m'

	require 'rugged'

	# Your specified file is the first argument
	file_path = ARGV[0]

	repo = Rugged::Repository.discover(File.dirname(file_path))
	walker = Rugged::Walker.new(repo)
	walker.push(repo.head.target.oid)
	walker.sorting(Rugged::SORT_TOPO)

	PryKeybind.register(:FRAMES, "\c_") do \|pry_instance\|
	backt = Byebug.current_context.backtrace
	result = Fzf(
	delimiter: ":",
	preview: 'bat --color=always --style=header, numbers -r ( range {3} $LINES) -H {3} ../{2}',
	expect: 'ctrl-v'
	) do
	backt
	.map(&:first)
	.map(&:to_s)

	# frozen_string_literal: true

	source "https://rubygems.org"

	gem 'down'
	gem 'dry-monads'
	gem 'http'

	CREATE EXTENSION IF NOT EXISTS "unaccent"

	CREATE OR REPLACE FUNCTION slugify("value" TEXT)
	RETURNS TEXT AS $$
	-- removes accents (diacritic signs) from a given string --
	WITH "unaccented" AS (
	SELECT unaccent("value") AS "value"
	),
	-- lowercases the string
	"lowercase" AS (

	#!/usr/bin/env python3

	import os
	import shutil
	import subprocess
	import random

	from argparse import ArgumentParser
	from argparse import REMAINDER
	from pathlib import Path