A collection of interesting links I found on the World Wide Web:
Software
- SageMath is a nice Python math package.
- FLINT is a number theory library for C.
- Neovim is a rich Vim-based text editor that I personally use.
- Caddy is a modern web server with automatic SSL. This website is hosted on it.
- suckless.org has a collection of minimalist software for Unix.
- FFmpeg is an extremely powerful media processing tool.
- nnn is a terminal file manager.
- copyparty is a portable file server.
- Ghidra is a powerful reverse engineering tool.
- strace is a Linux syscall tracer.
Games
- OpenTTD is an open-source transport tycoon game.
- OpenRCT2 is an open-source RollerCoaster Tycoon 2 clone.
- GZDoom is a source port of id Software’s original Doom engine.
- doomgeneric is easily portable Doom.
- NetHack is an old but still maintained open-source roguelike.
- Universal Paperclips is an online game about an AI making paperclips—what could go wrong?
- The Powder Toy is a relatively modern take on the old falling sand game.
- Luanti, formerly Minetest, is an open-source voxel game similar to Minecraft.
OS dev
- OSDev wiki has useful information for writing a toy OS. Articles vary in quality but are still quite helpful.
- 9front is a fork of Plan 9 from Bell Labs. An interesting little OS that takes the Unix philosophy to the next level.
- OpenBSD is a powerful free Unix OS. The source code is very clean and can act as a useful reference.
- SerenityOS is a quite advanced hobby OS. Development is led by Andreas Kling of Ladybird browser fame.
- ToaruOS is another interesting toy OS.
- SkiftOS is yet another homebrew OS.
Radio/Satellites
- RTL-SDR is a small SDR dongle that lets you listen to a wide spectrum of radio frequencies.
- Gqrx is SDR software for Linux.
- SDRangel is a very powerful piece of SDR software with a lot of supported modes.
- WebSDR is an HF SDR receiver located at the University of Twente in the Netherlands.
- tracksat.space is a nice little site for tracking satellites.
- SatDump is a program for decoding a wide range of satellite transmissions.
Websites
- Hacker News aggregates interesting articles and produces (mostly) high-quality discussion.
- http.cat explains HTTP status codes with cats.
- xkcd O-|—<
- The Onion, still producing hilarious stuff after some 40 years!
- EFF is the Electronic Frontier Foundation. They do a lot of good work defending digital rights and privacy.
- Neocities is a free, modern GeoCities-inspired website host. A lot of cool websites are hosted here!
- Decompiler Explorer is an online interface for decompiling binaries with several decompilers.
- LKML — the Linux kernel mailing list archive.
- Compiler Explorer is an online compiler and disassembler.
- awesome-selfhosted is an extensive list of software that can be self-hosted.
- Overleaf is an online LaTeX editor.
- Elixir is an amazing source code explorer, e.g., for the Linux kernel.
- Gruvbox Wallpapers is a collection of wallpapers that fit the gruvbox color scheme.
- FactorDB is an online integer factorisation database.
- GIMPS — the Great Internet Mersenne Prime Search.
- Stanford Encyclopedia of Philosophy is a very well-written online philosophy encyclopedia.
- Math LibreTexts is a repository of open-access math texts.
- ProofWiki is a wiki with proofs of mathematical theorems and definitions.
- OEIS is the On-Line Encyclopedia of Integer Sequences, a repository of known integer sequences.
- mandelbrot.site is a well-written Mandelbrot set explorer in the browser.
- erdosproblems.com catalogues around 1100 problems and conjectures posed by the great Paul Erdős.
Blogs
- nullprogram is Chris Wellons’s incredible programming blog.
- thephd is JeanHeyd Meneide’s blog about C/C++ stuff.
- Jacopo’s Lair has some useful articles about radio and weather satellites.
- Shtetl-Optimized is Scott Aaronson’s amazing blog, mainly about computer science.
- Astral Codex Ten and Slate Star Codex are Scott Alexander’s new and old blogs. Very well-written posts about a range of topics.
- Numb at the Lodge is extremely well-written and covers interesting topics—mostly philosophy-related. Sam Kriss is hands down one of the best writers on the internet.
- Noahpinion is Noah Smith’s economics blog.
- LOW←TECH MAGAZINE is a solar-powered website.
~more to come…