Sonny Piers

Director of the GNOME foundation, a software and organisation engineer.

The Prototype Fund

Funding initiative of the German government promoting development of open software. Anyone can apply for funding who lives in Germany, is self-employed, pays German taxes and publishes their source code on some sort of source forge. (You don’t need German citizenship.)

Fediverse address (in German):
@PrototypeFund@mastodon.social

TootSDK

Free open source Swift package library to help developers make apps that interact with the Fediverse.

Fediverse address:
@tootsdk@iosdev.space

GDQuest

Organisation that promotes the use of free open source software in game development, and posts videos all about this.

Fediverse address:
@gdquest@tilvids.com

Paul E Cooley

Prolific award-winning novelist, mainly in the sci-fi, horror and thriller genres. Author of “The Black” and “The Derelict” series, runs runs a podcast about the books. Also a software development veteran.

Fediverse address:
@paul_e_cooley@vyrse.social

Open Web Advocacy

Non-profit organisation of developers trying to protect the open web from restrictions imposed by tech giants.

Fediverse address:
@owa@mastodon.social

Felix LeClair

Free and Open Source Software Optimization Engineering. Focused on low level vectorization of host and accelerator devices. Very into puns, obsessed with pushing the boundaries of CFD performance.

Fediverse address:
@fclc@mast.hpc.social

Godot Engine

Popular free open source multiplatform game engine for 3D and 2D games.

Fediverse address (main):
@godotengine@mastodon.gamedev.place

Fediverse address (conference):
@godotcon@mastodon.gamedev.place

Fediverse address (asset store):
@godotassetstore@mastodon.gamedev.place

Fediverse address (foundation):
@godotfoundation@mastodon.gamedev.place

Stride

Free open source cross-platform game engine (previously known as Xenko).

Fediverse address:
@xenko@mastodon.gamedev.place

Rust Paris Mobilizon

Real life meetup group for Rust users in Paris, France. All skill levels welcome. Uses the Fediverse’s Mobilizon platform to advertise and organise meetings.

Fediverse address (in French):
@rust_paris@mobilizon.fr

Penpot

Free open source interface prototyping and design platform. It operates entirely through web browsers using SVG, so it can be used collaboratively and on any OS.

Fediverse address:
@penpot@fosstodon.org

Solarus

Free open source 2D game engine designed mainly for RPGs. Solarus games run on Nintendo Switch, Linux, Mac and Windows.

Fediverse address:
@solarus@mastodon.gamedev.place

Rust GameDev

Curated feed all about game development using the Rust programming language.

Fediverse address:
@rust_gamedev@mastodon.gamedev.place

Foss.events

Site covering all kinds of events related to free open source software.

Fediverse address:
@foss_events@fosstodon.org

Akademy

Annual world summit of KDE, a free non-commercial event organised by the KDE community.

Fediverse address (main):
@akademy@floss.social

Fediverse address (videos):
@akademy@tube.kockatoo.org

Playdate.rs

Free open source project creating API and build tools in Rust for the Playdate games console.

Fediverse address:
@playdaters@gamedev.social

Mekka Okereke

Posting about racial equality, inclusivity in tech, engineering director at Google building digital ecosystems.

Fediverse address:
@mekkaokereke@hachyderm.io

UnifiedPush

Set of specifications and free open source tools to help users get more control over how their phone’s (or computers’s) notifications are handled. There are options for self-hosting notification systems if needed.

Fediverse address:
@unifiedpush@fosstodon.org

GurgleApps

Family posting videos about fun projects that involve electronics, programming, physics, maths and all kinds of interesting stuff.

Fediverse address:
@GurgleApps@mastodon.social

Pacstall

AUR-style package manager for Ubuntu.

Fediverse address:
@pacstall@social.linux.pizza

Hare

A new programming language currently under development. The developers describe it as: “a systems programming language designed to be simple, stable, and robust” and “well-suited to low-level, high performance tasks.” Apparently it fits onto one 3.5 inch disk! 💾

Fediverse address:
@hare@fosstodon.org

Rust Trending

Bot posting the latest trending Rust repositories on Github.

Fediverse address:
@RustTrending@botsin.space

Alan Zucconi

Game developer and educator, Director of Studies and Senior Lecturer at Goldsmiths, University of London, leads MA Computer Games: Art & Design and MSc Computer Games Programming.

Fediverse address:
@AlanZucconi@mastodon.gamedev.place

Python Ireland

Representing users of the Python programming language in Ireland, organising meet-ups and events related to Python.

Fediverse address:
@pythonie@mastodon.social

HacDC

America’s second-oldest hackerspace, based in Washington DC.

Fediverse address:
@hacdc@fosstodon.org

Liberapay

Free open source non-profit platform for making recurring donations to projects or people. It’s like a libre alternative to Patreon. The project is funded entirely by donations made through its own platform.

Fediverse address:
@Liberapay@mastodon.xyz

KDE

Worldwide free open source software community which creates all kinds of popular useful projects such as the Plasma desktop, Kdenlive, Krita and lots more.

Fediverse address (main):
@kde@floss.social

Fediverse address (videos):
@kde_community@tube.kockatoo.org

Fediverse address (conference videos):
@kde@conf.tube

Fediverse address (Spanish language community):
@kde_espana@floss.social

BSDCan

Annual technical conference for people working on and with BSD-based operating systems and related projects. Held in Ottawa, Canada, since 2004.

Fediverse address:
@bsdcan@bsd.network

Qiskit

Free open source quantumn computing SDK for working with quantum computers at the level of pulses, circuits and application modules.

Fediverse address:
@qiskit@qubit-social.xyz

Mellium Co-op

A co-operative organisation creating Go-based resources for the XMPP instant messaging protocol.

Fediverse address:
@mellium@social.coop

Forgejo

Free open source self-hostable software forge, a community fork of Gitea supported by Codeberg. Federation of forges through ActivityPub planned.

Fediverse address:
@forgejo@floss.social

Charm

Make free open source command line interface apps, libs and back ends.

Fediverse address:
@charmcli@mastodon.social

Kelvin Shadewing

Developer on FOSS gaming projects such as SuperTux Advance, Kyrodian Legends and the Brux game engine.

Fediverse address:
@KelvinShadewing@mastodon.social

LWN.net

One of the internet’s longest-running news sites about free open source software and software development. Originally founded in 1998 when “LWN” stood for “Linux Weekly News”, but they now cover much more than that, with new items appearing daily.

Fediverse address:
@LWN@fosstodon.org

Niccolò Ve

KDE developer posting lots of interesting videos all about software created by the KDE community and related topics.

Fediverse address:
@veggero@tube.kockatoo.org

Interpeer Project

Research and development project to develop next generation technologies that put users first, to protect them from exploitation and privacy invasion by online service providers. Partly funded by the European Union.

Fediverse address:
@interpeer@chaos.social

Mike Conley

Works on Firefox for Mozilla, and runs a live stream featuring programming techniques called “The Joy of Coding”. The stream is on Twitch and PeerTube, and there’s an archive of past episodes on PeerTube.

Fediverse address:
@mconley@diode.zone

Rust Language

Official account of the Rust programming language.

Fediverse address:
@rust@social.rust-lang.org

Pavel A. Samsonov

Product designer focusing on user experience, currently working on better UX for software at AWS.

Fediverse address:
@PavelASamsonov@mastodon.social

Cacheflowe

Artist and creative developer creating interactive installations, games and music for museums, public art, companies, fashion, education etc. Based in Boston MA USA.

Fediverse address:
@cacheflowe@mastodon.social

SwiftUI Guppe Group

Discussion group about the SwiftUI framework for building apps for Apple hardware. (Click here ⧉ for more info on how to use Fediverse groups.)

Fediverse address:
@swiftui@a.gup.pe

Defold

Free source-available 2D and 3D game engine for cross-platform PC, smartphone and console games.

Fediverse address:
@defold@mastodon.gamedev.place

Scott Jenson

User experience veteran, has worked on UX for Apple System 7, Symbian’s DesignLab and currently Android UX research and Physical Web for Google.

Fediverse address:
@scottjenson@social.coop

Woodpecker CI

Free open source community fork of the Drone Continuous Integration platform.

Fediverse address:
@WoodpeckerCI@floss.social

FOSDEM

The Free and Open source Software Developers’ European Meeting is a well-established non-profit annual conference all about FOSS. It has taken place every year since 2000, though the most recent ones have been online due to the pandemic.

Fediverse address:
@fosdem@fosstodon.org

Brad P. Taylor

Veteran programmer and game developer who has worked on many famous projects including the legendary SCUMM game engine at Lucasfilm/LucasArts.

Fediverse address:
@lardratboy@corteximplant.com

PHP

Official account for the popular scripting language used widely in web development.

Fediverse address:
@php@fosstodon.org

Bevy Engine

Simple data-driven free open source game engine, built in Rust.

Fediverse address:
@bevy@mastodon.social

Steven P. Sanderson II, MPH

Data scientist interested in data visualisation and working with RStats.

Fediverse address:
@stevensanderson@mstdn.social

James

Admin of the pdx.social Mastodon server for Portland, Oregon, USA. Also works on the Playdate handheld console and software development at Panic.

Fediverse address:
@foozmeat@pdx.social

ExcelAnalytics

Training and consulting on Excel/VBA development, testing, model review, analytics, and spreadsheet auditing. Author of “Spreadsheet Check and Control”.

Fediverse address:
@ExcelAnalytics@mastodon.world

Timnit Gebru

Founder and Executive Director at the DAIR Institute, researching AI from an ethical starting point, encouraging safety processes to be built into AI from beginning to end, and bringing more diverse participation into AI research.

Fediverse address:
@timnitGebru@dair-community.social

Linux Magazine

Physical and digital magazine with news and features about Linux, FOSS, software development, electronics projects etc.

Fediverse address:
@linuxmagazine@fosstodon.org

Weblate

Free open source software to help organise the translation and localisation of projects. Very widely used by the libre software community to allow crowdsourced translation.

Fediverse address:
@weblate@fosstodon.org

Jeremy Sinclair

Windows, .NET, SharePoint and Xamarin developer, the only Microsoft MVP in West Virginia, Windows Insider MVP and Windows Dev MVP.

Fediverse address:
@sinclairinat0r@haqueers.com

Civic Coding

A joint initiative by various German government departments to promote responsible and sustainable use of AI / Large Language Model technologies.

Fediverse address (in German):
@CivicCoding@social.bund.de

Django

Free open source high-level Python web framework that runs on a web server.

Fediverse address:
@django@fosstodon.org

Filip W

Software architect, open source maintainer and quantum computing expert, author of “Introduction to Quantum Computing with Q# and QDK”.

Fediverse address:
@filipw@mathstodon.xyz

openSUSE

Version of Linux aimed at software developers and system administrators.

Fediverse address:
@opensuse@fosstodon.org

Rust Tips

Unofficial account posting tips on how to use the Rust programming language.

Fediverse address:
@rust@octodon.social

Burn

Indie game developer and creator of the colourful retro neon title Spectrum Break for Android, Mac and Windows.

Fediverse address:
@JHein@mastodon.social

rubenwardy

Software engineer and core developer on Minetest, the free open source voxel game platform.

Fediverse address:
@rubenwardy@fosstodon.org

godot-rust

Providing bindings for the Godot game engine to the Rust programming language.

Fediverse address:
@GodotRust@mastodon.gamedev.place

Android Weekly

Android development newsletter founded in 2011.

Fediverse address:
@androidweekly@androiddev.social

Cédric Champeau

Amateur astronomer, astrophotographer and software developer. Creator of open source libraries and applications for astronomy.

Fediverse address:
@melix@astrodon.social

Joseph Elfelt

Developer of GISsurfer web map, FindMeSAR, GeoJPG, curator of 3000+ ArcGIS server list.

Fediverse address:
@mappingsupport@m.ai6yr.org

Felix Häcker

GNOME contributor, GNOME foundation member, author of “This Week in GNOME” blog, fan of Rust programming language.

Fediverse address:
@haeckerfelix@mastodon.social

benui

Game developer who writes tutorials about using Unreal Engine

Fediverse address:
@_benui@mastodon.gamedev.place

FOSSlife

Technology news and features website covering free open source software, especially from a professional careers point of view.

Fediverse address:
@fosslife@fosstodon.org

Firefox Dev Tools

Web developer tools built into Firefox, allowing devs to examine, edit and debug HTML, CSS and JavaScript.

Fediverse address:
@FirefoxDevTools@mozilla.social

BBC Micro Bot

Bot that runs toots containing programming code on an 8-bit computer emulator, then replies with a screenshot or video clip of the program running.

Fediverse address:
@bbcmicrobot@mastodon.me.uk

Taggart

Information Security blogger, live streamer and educator, runs the Infosec blog Taggart Tech.

Fediverse address:
@mttaggart@fosstodon.org

Quazar

Retro developer focused on the SAM Coupé computer. Creates new software and hardware for the SAM Coupé, runs the SamCoupe.com website, writes for the SAM Revival magazine.

Fediverse address:
@quazarsamcoupe@mastodonapp.uk

SimpleTools

Community that promotes free open software which is lightweight, simply designed and easy to use.

Fediverse address:
@simpletools@fosstodon.org

Reproducible Builds

Aims to make it easier to check the source code of free and open source software. Reproducible Builds promotes tools and practices to help verify that open source code has not been altered before distribution.

Fediverse address:
@reproducible_builds@fosstodon.org

Aethernaut

Live streaming account playing free open source games, and some software coding.

Fediverse address:
@aethernaut@tv.aethernaut.eu

Dr Rahul Gopinath

Lecturer in the School of Computer Science at the University of Sydney, Australia. His main research area is in the junction between Software Engineering and Cybersecurity. Interested in Program Analysis, Automatic Repair, Mutation Analysis, Specification Mining, Grammar Based Generators and Parsing.

Fediverse address:
@rahul@gopinath.org

Game Programming Resources

Human-curated account posting and boosting useful links for game developers.

Fediverse address:
@game_programming@mastodon.social

Michał “rysiek” Woźniak

IT expert, software developer, good guy hacker, long-time Fediverse user. Fighting for privacy rights, libre software and ethical tech. Did information security and infrastructure for Panama Papers journalists, amongst others.

Fediverse address:
@rysiek@mstdn.social

Rust Guppe Group

Fediverse discussion group about the Rust programming language. (Click here ⧉ for more info on how to use Fediverse groups.)

Fediverse address:
@rust@a.gup.pe

Racket

Official account for the Racket programming language, a modern dialect of Lisp.

Fediverse address:
@racketlang@functional.cafe

David “the Talking Skull” Fox

Veteran game developer who was lead dev on legendary titles for Lucasfilm Games such as “Zak McKracken” and “Rescue on Fractalus”. Most recently has worked with Ron Gilbert on “Thimbleweed Park” and “Return To Monkey Island” 🏴‍☠️ 🐒

Fediverse address:
@DavidBFox@mastodon.gamedev.place

Sloanysoft

Father and son development team creating new games for 8-bit computers such as the ZX Spectrum. They also run a gaming livestream.

Fediverse address:
@Sloanysoft@oldbytes.space

Florian Ledermann

Critical engineer, cartographer and programmer researching and teaching interactive maps at the Vienna University of Technology.

Fediverse address:
@floledermann@mapstodon.space

SuperIlu

Software developer and retro computing enthusiast, collects old computers and creates retro software for MS-DOS such as the FOSS Mastodon client DOStodon and the JavaScript environment DOjS.

Fediverse address:
@dec_hl@mastodon.social

Andy Balaam

In-depth tutorial videos and livestreams about software development with many different programming languages and platforms, including Rust, Lisp, Python, JavaScript, Java, Ruby, Android etc.

Fediverse address (videos):
@andybalaam@video.infosec.exchange

Fediverse address (livestream):
@andy@andybalaam.uk.to

Rstats Guppe Group

A Fediverse discussion group about the R programming language for statistical computing. (Click here ⧉ for more about how groups work.)

Fediverse address:
@rstats@a.gup.pe

Wladimir Palant

Security researcher and software developer, runs a blog about Infosec.

Fediverse address:
@WPalant@infosec.exchange

Nathalie Lawhead / alienmelon

Indie developer, makes experimental surreal games and software including “Tetrageddon”, “Everything is going to be OK”, “Electric Zine Maker” and more.

Fediverse address:
@alienmelon@mastodon.social

Kyle Szklenski

Game developer and enthusiastic user of the Godot game engine. Posts lots of tips and tricks for using Godot, and is creator of the Godot Firebase plugin.

Fediverse address:
@BackAt50Ft@mastodon.gamedev.place

Dylan Language / Open Dylan

Official account for the Open Dylan implementation of the Dylan programming language, a descendant of Lisp.

Fediverse address:
@DylanLang@fosstodon.org

V Brigham

Veteran programmer for the venerable Commodore 64 home computer from 1982, who nowadays posts in-depth videos about developing software on the C64.

Fediverse address:
@v_brigham@tilvids.com

Amit Gawande

Professional software developer, posts regularly about various forms of programming as well as random other thoughts.

Fediverse address:
@amit@social.lol

Julia Ferraioli

Open Source Technical Leader at Cisco’s Open Source Programs Office (OSPO). Co-founder of Open Source Stories and contributor to LeadDev. Also posts about disabilities.

Fediverse address:
@juliaferraioli@floss.social

Codeberg

Non-profit hosting service for FOSS projects, their source code and their development. Powered by the self-hostable FOSS forge software Forgejo (which Codeberg helped to fork from Gitea).

Fediverse address:
@Codeberg@social.anoxinon.de

Uglyhack

Makes tutorial videos about electronics, programming, DIY and other projects. The videos are released under creative commons.

Fediverse address:
@uglyhack@diode.zone

DDEV

Open source web development tool for PHP and Node.js websites.

Fediverse address:
@ddev@fosstodon.org

8bitworkshop

Web-based IDE which lets you write code for classic 8-bit computers and consoles within your browser, and see it run as you do so. Also publishes a range of books on programming for classic 8-bit systems.

Fediverse address:
@8bitworkshop@oldbytes.space

What Rust is it?

Bot posting latest Rust releases.

Fediverse address:
@whatrustisit@botsin.space

Christian Lawson-Perfect

Mathematician and software engineer at Newcastle University, and an admin on mathstodon.xyz maths-themed Fediverse server.

Fediverse address:
@christianp@mathstodon.xyz

Di

Data visualisation engineer based in Australia, author of “Practical UI Patterns for Design Systems”. Also creator of Typey Type, a free typing app for stenographers.

Fediverse address:
@didoesdigital@bne.social

GNOME

Develops and maintains a free open source desktop environment used by many popular versions of Linux including Ubuntu, Debian, Fedora etc.

Fediverse address (main):
@gnome@floss.social

Fediverse address (in Portuguese):
@gnome_br@mastodon.social

Jesper Dr.amsch

Machine Learning scientist at the European Centre for Medium-Range Weather Forecasts. Posts about machine learning and related topics.

Fediverse address:
@jesper@tech.lgbt