Nim References & Learning
The shortest path remains your own machine: install the toolchain from the official install page and every demo and project in this track runs with one command. The resources below support that path at every level.
nim --version # confirm the toolchain you installed
nim c -r 01_hello.nim # compile, link, run — the whole loop
nimble --version # the package manager ships with Nim
Playgrounds & Online Compilers
When you cannot install anything — a locked-down machine, a borrowed laptop — a browser playground still lets you experiment. These run the same compiler you would install locally, so what you learn there transfers unchanged.
Run Nim Without Installing
| Tool | What it is | Best for |
|---|---|---|
| Nim Playground (official) | The project's own web playground: edit, compile and run; share a link to a snippet | Quick experiments, sharing a minimal reproduction |
| Compiler Explorer (Godbolt) | Type Nim on the left and read the generated C on the right, side by side | Seeing what the compiler emits — invaluable for performance work |
| Try It Online (TIO) | Minimal multi-language runner with a Nim entry | One-liners and algorithm checks |
| Replit | Cloud IDE with a Nim template, files and a terminal | Multi-file projects away from your machine |
Official Documentation
Nim's documentation is generated from the source and kept current. When this track and the documentation disagree, the documentation wins — and the manual is the normative one.
The Documents That Matter
| Source | What it is |
|---|---|
| Nim Manual | The specification: type system, generics, effects, pragmas, memory model. Dense but authoritative |
| Standard Library Index | Every module, proc and type with signatures and examples — your most-visited page |
| Tutorial, Part 1 | The language for readers already fluent in another one; parts 2 and 3 continue into macros and metaprogramming |
| Compiler User Guide | Command-line options, cross-compilation, backends, code generation — the reference for build work |
| NimScript | The language of config.nims and .nimble files; explains the tasks used in build configuration |
| Packaging Guide | How to structure a library and publish it to the Nimble directory |
| Destructors & ARC/ORC | Move semantics, =destroy, =copy, sink — the model behind Nim 2.x memory management |
| Style Guide (NEP-1) | The naming and layout conventions the standard library follows; adopt them early |
| Backend Targets | C, C++, Objective-C and JavaScript backends, and what each one can do |
Community
Nim is a small, responsive community. Ask a precise question — the smallest program that shows the problem, plus the compiler version — and you will usually get an answer from someone who knows the compiler internals.
Where to Ask and Follow
| Channel | What it is |
|---|---|
| Nim Forum | The official discussion forum: questions, RFC-style proposals, release announcements |
| Discord | Real-time help; the #help channel is the fastest route to an answer |
| Matrix / Gitter bridge | The same rooms for people who prefer open protocols |
| Issue Tracker | Report compiler bugs and read the ones others found — a free education in edge cases |
| Official Blog | Release notes and design essays from the core team |
| Community Directory | The canonical, always-current list of channels, meetups and package sources |
Practice and Exercises
Reading teaches recognition; typing teaches production. These two systems give you graded problems with automated feedback, which is the fastest way to move from "I understand" to "I can write it".
Exercise Tracks
| Source | What it is |
|---|---|
| Exercism Nim Track | Graded exercises with a test suite you must satisfy, plus human mentoring on your solution |
| Rosetta Code — Nim | The same task solved in many languages: compare Nim's answer with the one you would write in your previous language |
| awesome-nim | A curated index of tutorials, books, videos and libraries; the "learning" section alone is a curriculum |
| Metaprogramming Tutorial | Macros and templates explained with runnable examples — do them all, in order |
Open-Source Samples
Reading code written by maintainers consolidates style faster than any guide. Start small, then follow the imports downwards.
Repositories to Study
| Source | What it is |
|---|---|
| nim-lang/Nim | The compiler and standard library — read lib/pure/ first, then lib/system/ |
| nim-lang/fusion | Well-tested extensions to the standard library: containers, iterators, optionals |
| nim-lang/packages | The package index itself — a map of the ecosystem, searchable through nimble.directory |
| status-im/nim-chronos | Production async I/O used in real network services: effects, futures, cancellation |
| zedeus/nitter | A complete web application in Nim — a good example of project layout at scale |
| karaxnim/karax | A web UI framework compiled to JavaScript: proves the same language serves the browser |
How to Choose & Next Steps
Follow this ladder and you will never be stuck for what to do next.
A Practical Ladder
- Finish this track, running every lab example and building each study project.
- Work the Exercism Nim track for feedback on style and idiom.
- Read the manual sections on the features you have already used — they will mean more now.
- Take the metaprogramming tutorial slowly, and write one macro you actually need.
- Publish a small library to nimble.directory — packaging it will teach you more about the build system than any reading.
- Read one module of
lib/pure/per week and try to simplify it; you will learn what good Nim looks like.
Welcome to the Nim community — a language small enough to understand completely, and fast enough to keep.