Bookmarks

Top ranked Bash commands on commandlinefu.com
Introduction to Proofs: an Inquiry-based Approach: A free, very short (less than 20 pages) undergraduate level text
Elementary Number Theory: A short, free textbook introduction to number theory for undergraduates
Linear Algebra: A free linear algebra textbook with extensive exercise sets accompanied by fully worked out solutions
Theory of Computation: A free textbook introduction to Computer Science theory with exercise sets and solutions
psql command line tutorial and cheat sheet
web.dev: Google courses on responsive design, forms, progressive web apps, and CSS
The Deadlock Empire: Slay dragons, master concurrency!
LeetCode: Algorithms and datastructure problems
HackerRank: Programming exercises for algorithms, datastructures, SQL, regex, Python, Ruby, Shell, C, C++, AI, math, and more
PostgreSQL Exercises: A well-designed sequence of exercises to learn SQL using Postgres
sql-ex.ru: SQL exercises
SQLBolt: Learn SQL with simple, interactive exercises
Execute Program: Courses for software developers that incorporate spaced repetition to ensure knowledge retention
OverTheWire: Hacking wargames
SmashTheStack: More hacking wargames
Kubernetes the Hard Way
Crafting Interpreters
Linux Upskill Challenge
The FreeBSD Handbook
Derek Wyatt's Vim tutorials
Vim Adventures
Computer Networks: A Systems Approach

Pijul: A free, open source, fast, scalable distributed version control system based on a theory of patches
fish: a better shell
make
at: schedule commands to run once
btop
inxi
strace
dnsmasq: a lightweight, easy to configure, DNS forwarder and DHCP server
Age: A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.
Rclone: Manage files on cloud storage
gTTS: Python library and CLI tool to interface with Google's Translate text-to-speech API
Shellcheck: Shell script linter
Unofficial Bash Strict Mode: an opinionated guide to writing safer bash scripts
Omnivim: Vim and Tmux, together as one.
lsd (LSDeluxe): a better /bin/ls
insect: High precision scientific calculator with full support for physical units

Playwright: Reliable end-to-end testing for modern web apps
Tailwind CSS: A utility-first CSS framework
modern-normalize: CSS stylesheet to normalize browsers' default style
Quickemu: Quickly create an run optimized Windows, macOS and Linux desktop virtual machines
attrs: Better Data Classes for Python
p5.js: A JavaScript library for creative coding
PixiJS: The HTML5 Creation Engine
Cog
htmx: A minimalist alternative to heavy JS frameworks
AlpineJs: An ultralight library to add dynamic behavior to webpages
FastAPI
Pydantic
PicoCss: Minimal Css Framework for semantic HTML
SortableJS
Sh: s/bash/python/
XState: State machines and statecharts for the modern web
pudb: Full-screen console dubugger for Python
Icecream: A better print()
PySnooper: Debug tool
_hyperscript: "A small scripting language for the web"
Svelte
Toga: "A Python native, OS native GUI toolkit"
Deal: Design by contract for Python
Zxcvbn-Python: Python port of Dropbox's password strength estimator