Tech, hacking, hardware, makerspaces.
General-purpose programming language
Any low-level programming language in which there is a very strong correspondence between the instructions in the language and the architect…
Numerical computing environment
A Hottub for people into Retro Computing — find your people and start something.
Legacy programming language by Microsoft
Our team creates Hottubs — tell us what's worth gathering around near you and we review every suggestion.
A Hottub for people into Woodworking — find your people and start something.
A Hottub for people into 3D Printing — find your people and start something.
A Hottub for people into Game Development — find your people and start something.
A Hottub for people into Arduino & Electronics — find your people and start something.
A Hottub for people into Mechanical Keyboards — find your people and start something.
A Hottub for people into Robotics — find your people and start something.
A Hottub for people into Self-Hosting & Homelab — find your people and start something.
A Hottub for people into Home Automation — find your people and start something.
A Hottub for people into Drone & FPV Flying — find your people and start something.
A Hottub for people into Amateur Radio — find your people and start something.
Declarative language for styling web pages
Lightweight programming language Especially popular in BR.
From data science and AI to web backends and automation glue. The global Hottub for Python — find others who write Python, send a note, and …
The language of the web — browsers, Node, and everything between. The global Hottub for JavaScript — find others who write JavaScript, send …
JavaScript with types, scaled to large codebases. The global Hottub for TypeScript — find others who write TypeScript, send a note, and talk…
Enterprise backends, Android, and the vast JVM ecosystem. The global Hottub for Java — find others who write Java, send a note, and talk sho…
Close to the metal — systems, embedded, and the roots of it all. The global Hottub for C — find others who write C, send a note, and talk sh…
High-performance systems, games, and anything that has to be fast. The global Hottub for C++ — find others who write C++, send a note, and t…
Microsoft's workhorse for .NET, Unity games, and desktop. The global Hottub for C# — find others who write C#, send a note, and talk shop. M…
Simple, fast, concurrent — cloud infrastructure and services. The global Hottub for Go — find others who write Go, send a note, and talk sho…
Memory safety without a garbage collector — systems done modern. The global Hottub for Rust — find others who write Rust, send a note, and t…
Apple platforms — iOS, macOS, and beyond. The global Hottub for Swift — find others who write Swift, send a note, and talk shop. Meet the pe…
Modern JVM language — Android's favorite, strong on the server. The global Hottub for Kotlin — find others who write Kotlin, send a note, an…
Developer happiness — Rails, scripting, and elegant code. The global Hottub for Ruby — find others who write Ruby, send a note, and talk sho…
Powers much of the web — WordPress, Laravel, and more. The global Hottub for PHP — find others who write PHP, send a note, and talk shop. Me…
The classic language of Apple platforms before Swift. The global Hottub for Objective-C — find others who write Objective-C, send a note, an…
The language behind Flutter — apps from one codebase. The global Hottub for Dart — find others who write Dart, send a note, and talk shop. M…
The original Swiss Army chainsaw of scripting. The global Hottub for Perl — find others who write Perl, send a note, and talk shop. Meet the…
Tiny, fast, embeddable — games and scripting. The global Hottub for Lua — find others who write Lua, send a note, and talk shop. Meet the pe…
Functional meets object-oriented on the JVM. The global Hottub for Scala — find others who write Scala, send a note, and talk shop. Meet the…
A modern Lisp on the JVM — immutable and pragmatic. The global Hottub for Clojure — find others who write Clojure, send a note, and talk sho…
Dynamic JVM scripting — Gradle, Jenkins, and glue. The global Hottub for Groovy — find others who write Groovy, send a note, and talk shop. …
Pure functional programming and a famously strong type system. The global Hottub for Haskell — find others who write Haskell, send a note, a…
Concurrent, fault-tolerant systems on the Erlang VM. The global Hottub for Elixir — find others who write Elixir, send a note, and talk shop…
Telecom-grade reliability and massive concurrency. The global Hottub for Erlang — find others who write Erlang, send a note, and talk shop. …
A delightful functional language for reliable web frontends. The global Hottub for Elm — find others who write Elm, send a note, and talk sh…
Fast, pragmatic functional programming with a powerful type system. The global Hottub for OCaml — find others who write OCaml, send a note, …
Functional-first on .NET. The global Hottub for F# — find others who write F#, send a note, and talk shop. Meet the people who do what you d…
The full-power, multi-paradigm Lisp. The global Hottub for Common Lisp — find others who write Common Lisp, send a note, and talk shop. Meet…
Minimal, elegant Lisp — SICP and beyond. The global Hottub for Scheme — find others who write Scheme, send a note, and talk shop. Meet the p…
A language for making languages. The global Hottub for Racket — find others who write Racket, send a note, and talk shop. Meet the people wh…
Haskell-like purity that compiles to JavaScript. The global Hottub for PureScript — find others who write PureScript, send a note, and talk …
Strongly typed, fast, compiles to clean JavaScript. The global Hottub for ReScript — find others who write ReScript, send a note, and talk s…
A clean, formally defined functional language. The global Hottub for Standard ML — find others who write Standard ML, send a note, and talk …
A friendly, typed language for the Erlang VM. The global Hottub for Gleam — find others who write Gleam, send a note, and talk shop. Meet th…
A fast, friendly functional language in the making. The global Hottub for Roc — find others who write Roc, send a note, and talk shop. Meet …
A modern systems language aiming to replace C. The global Hottub for Zig — find others who write Zig, send a note, and talk shop. Meet the p…
Systems programming with modern conveniences. The global Hottub for D — find others who write D, send a note, and talk shop. Meet the people…
Efficient and expressive — compiles to C. The global Hottub for Nim — find others who write Nim, send a note, and talk shop. Meet the people…
Ruby-like syntax with compiled speed and static types. The global Hottub for Crystal — find others who write Crystal, send a note, and talk …
Simple, fast, compiled — a young systems language. The global Hottub for V — find others who write V, send a note, and talk shop. Meet the p…
A data-oriented systems language for high-performance work. The global Hottub for Odin — find others who write Odin, send a note, and talk s…
Google's experimental successor to C++. The global Hottub for Carbon — find others who write Carbon, send a note, and talk shop. Meet the pe…
C#-like syntax compiling to C for GNOME. The global Hottub for Vala — find others who write Vala, send a note, and talk shop. Meet the peopl…
An actor-model language built for safe concurrency. The global Hottub for Pony — find others who write Pony, send a note, and talk shop. Mee…
A Python-family performance language for AI. The global Hottub for Mojo — find others who write Mojo, send a note, and talk shop. Meet the p…
Statistics, data analysis, and visualization. The global Hottub for R — find others who write R, send a note, and talk shop. Meet the people…
High-performance scientific and numerical computing. The global Hottub for Julia — find others who write Julia, send a note, and talk shop. …
Numerical computing, engineering, and research. The global Hottub for MATLAB — find others who write MATLAB, send a note, and talk shop. Mee…
Decades of high-performance numerical and scientific code. The global Hottub for Fortran — find others who write Fortran, send a note, and t…
Statistical analysis in enterprise and clinical settings. The global Hottub for SAS — find others who write SAS, send a note, and talk shop.…
Data analysis for economics and the social sciences. The global Hottub for Stata — find others who write Stata, send a note, and talk shop. …
Symbolic computation and the Mathematica ecosystem. The global Hottub for Wolfram — find others who write Wolfram, send a note, and talk sho…
A little syntax sugar that compiles to JavaScript. The global Hottub for CoffeeScript — find others who write CoffeeScript, send a note, and…
Meta's typed dialect of PHP. The global Hottub for Hack — find others who write Hack, send a note, and talk shop. Meet the people who do wha…
Perl's bold successor (formerly Perl 6). The global Hottub for Raku — find others who write Raku, send a note, and talk shop. Meet the peopl…
A tiny, embeddable scripting language with deep roots. The global Hottub for Tcl — find others who write Tcl, send a note, and talk shop. Me…
Shell scripting and automation on Unix and Linux. The global Hottub for Bash — find others who write Bash, send a note, and talk shop. Meet …
Automation and administration across Windows and beyond. The global Hottub for PowerShell — find others who write PowerShell, send a note, a…
Pattern-scanning and text transformation on the command line. The global Hottub for AWK — find others who write AWK, send a note, and talk s…
Approachable .NET development and Office macros (VBA). The global Hottub for Visual Basic — find others who write Visual Basic, send a note,…
Godot's built-in scripting language for game makers. The global Hottub for GDScript — find others who write GDScript, send a note, and talk …
One codebase, many targets — games and cross-platform. The global Hottub for Haxe — find others who write Haxe, send a note, and talk shop. …
Still running the world's banks and mainframes. The global Hottub for COBOL — find others who write COBOL, send a note, and talk shop. Meet …
A classic teaching language and the root of Delphi. The global Hottub for Pascal — find others who write Pascal, send a note, and talk shop.…
Rapid native app development with Object Pascal. The global Hottub for Delphi — find others who write Delphi, send a note, and talk shop. Me…
Safety-critical systems — aerospace, defense, and rail. The global Hottub for Ada — find others who write Ada, send a note, and talk shop. M…
The language of SAP enterprise systems. The global Hottub for ABAP — find others who write ABAP, send a note, and talk shop. Meet the people…
Salesforce's Java-like platform language. The global Hottub for Apex — find others who write Apex, send a note, and talk shop. Meet the peop…
Design by Contract and rigorous object-oriented design. The global Hottub for Eiffel — find others who write Eiffel, send a note, and talk s…
Where countless programmers got their start. The global Hottub for BASIC — find others who write BASIC, send a note, and talk shop. Meet the…
The pure object-oriented language that shaped everything after. The global Hottub for Smalltalk — find others who write Smalltalk, send a no…
The raw machine — registers, opcodes, and full control. The global Hottub for Assembly — find others who write Assembly, send a note, and ta…
Logic programming — facts, rules, and inference. The global Hottub for Prolog — find others who write Prolog, send a note, and talk shop. Me…
Stack-based, minimal, and famously close to the hardware. The global Hottub for Forth — find others who write Forth, send a note, and talk s…
Array programming in a notation all its own. The global Hottub for APL — find others who write APL, send a note, and talk shop. Meet the peo…
A modern, terse array language in the APL tradition. The global Hottub for J — find others who write J, send a note, and talk shop. Meet the…
An ultra-terse array language behind kdb+. The global Hottub for K — find others who write K, send a note, and talk shop. Meet the people wh…
A modern concatenative, stack-based language. The global Hottub for Factor — find others who write Factor, send a note, and talk shop. Meet …
A full-stack language inspired by REBOL. The global Hottub for Red — find others who write Red, send a note, and talk shop. Meet the people …
The language of relational data — queries, joins, and reports. The global Hottub for SQL — find others who write SQL, send a note, and talk …
Oracle's procedural extension to SQL. The global Hottub for PL/SQL — find others who write PL/SQL, send a note, and talk shop. Meet the peop…
Microsoft SQL Server's procedural SQL. The global Hottub for T-SQL — find others who write T-SQL, send a note, and talk shop. Meet the peopl…
Describing digital hardware and FPGAs. The global Hottub for VHDL — find others who write VHDL, send a note, and talk shop. Meet the people …
Hardware description for chips and FPGAs. The global Hottub for Verilog — find others who write Verilog, send a note, and talk shop. Meet th…
Modern hardware design and verification. The global Hottub for SystemVerilog — find others who write SystemVerilog, send a note, and talk sh…
Smart contracts on Ethereum and EVM chains. The global Hottub for Solidity — find others who write Solidity, send a note, and talk shop. Mee…
A Pythonic, security-focused smart-contract language. The global Hottub for Vyper — find others who write Vyper, send a note, and talk shop.…
Resource-oriented smart contracts (Sui, Aptos). The global Hottub for Move — find others who write Move, send a note, and talk shop. Meet th…
Dependent types for programs you can prove. The global Hottub for Idris — find others who write Idris, send a note, and talk shop. Meet the …
Dependently typed programming and proof. The global Hottub for Agda — find others who write Agda, send a note, and talk shop. Meet the peopl…
A functional language and theorem prover (Lean 4). The global Hottub for Lean — find others who write Lean, send a note, and talk shop. Meet…
Microsoft's language for quantum computing. The global Hottub for Q# — find others who write Q#, send a note, and talk shop. Meet the people…
The language behind reproducible builds and NixOS. The global Hottub for Nix — find others who write Nix, send a note, and talk shop. Meet t…
Infrastructure as code with HashiCorp Configuration Language. The global Hottub for HCL — find others who write HCL, send a note, and talk s…
Formally verifiable Ada — provably safe code for the highest-stakes systems. The global Hottub for SPARK (Ada) — find others who write SPARK…
The database language still running hospitals and banks (Epic, VistA). The global Hottub for MUMPS (M) — find others who write MUMPS (M), se…
Business applications on IBM i (AS/400) — still everywhere in enterprise. The global Hottub for RPG (IBM) — find others who write RPG (IBM),…
IBM mainframe heritage — still maintained across finance and insurance. The global Hottub for PL/I — find others who write PL/I, send a note…
Readable, durable scripting on IBM mainframes and beyond. The global Hottub for REXX — find others who write REXX, send a note, and talk sho…
Progress's 4GL — business apps that have run for decades. The global Hottub for OpenEdge ABL — find others who write OpenEdge ABL, send a no…
Rapid web apps in CFML — still powering enterprise sites. The global Hottub for ColdFusion (CFML) — find others who write ColdFusion (CFML),…
Extending the one true editor — a Lisp people write every day. The global Hottub for Emacs Lisp — find others who write Emacs Lisp, send a n…
Typesetting that scientists and publishers still depend on. The global Hottub for LaTeX — find others who write LaTeX, send a note, and talk…
C-speed Python — the bridge that ships in production data stacks. The global Hottub for Cython — find others who write Cython, send a note, …
Productive parallel programming for supercomputers. The global Hottub for Chapel — find others who write Chapel, send a note, and talk shop.…
A language built for cloud integration and APIs. The global Hottub for Ballerina — find others who write Ballerina, send a note, and talk sh…
A small scripting language embedded in games and devices. The global Hottub for Squirrel — find others who write Squirrel, send a note, and …
A small, fast, class-based language made to embed. The global Hottub for Wren — find others who write Wren, send a note, and talk shop. Meet…
A modern Lisp that embeds anywhere, batteries included. The global Hottub for Janet — find others who write Janet, send a note, and talk sho…
Wirth's systems language — alive in embedded, and now in GCC. The global Hottub for Modula-2 — find others who write Modula-2, send a note, …