Elixir Roadmap

Elixir is a functional language that runs on the Erlang VM (BEAM) and is built for concurrent, fault-tolerant, distributed systems. Immutable data, lightweight processes with isolated heaps, and the OTP supervision model let a single codebase scale from one laptop to a global cluster. This track starts with why you would choose Elixir over Python or Rust, then deep-dives from first expressions to production OTP, Ecto, Phoenix, and performance work.

Scope: Study the labs in order. Phases 1–2 build language fluency, phase 3 adds metaprogramming and tooling, phase 4 is the OTP core, phase 5 covers the production ecosystem, phase 6 collects runnable demos and study projects, and phase 7 is the reference shelf.

Elixir Study Progress

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#	ELIXIR	Topic	Description
PHASE 1: FOUNDATIONS
	01	Foundations	What Elixir is, why it exists, and where the BEAM shines in production.
	02	Elixir vs Python vs Rust	Motivation first: an honest head-to-head and the same program in three languages.
	03	Install & Toolchain	Erlang/OTP, Elixir 1.20, IEx, Mix, Hex, Livebook, and editor setup.
	04	Syntax & Expressions	Modules, functions, the pipe operator, sigils intro, docs as code.
PHASE 2: LANGUAGE CORE
	05	Data & Immutability	Atoms, numbers, tuples, lists, maps, structs, and immutable values.
	06	Pattern Matching	The match operator, destructuring, pin, guards, case, cond, with.
	07	Functions & Recursion	Named and anonymous functions, captures, closures, tail recursion.
	08	Collections & Enumeration	Enum, Stream, comprehensions, and the cost of each structure.
	09	Structs, Protocols & Behaviours	Named shapes, data-driven dispatch, and module contracts.
	10	Errors & Failure Idioms	Tagged tuples vs exceptions, raise/rescue, with, and let-it-crash.
	11	Strings, Binaries & Sigils	UTF-8 strings, bitstring syntax, binary parsing, IO data.
PHASE 3: METAPROGRAMMING & TOOLING
	12	Macros & Metaprogramming	The AST, quote/unquote, defmacro, use/import, and restraint.
	13	Mix, Dependencies & Releases	Project anatomy, Hex deps, config layers, mix release, umbrella.
	14	Testing with ExUnit	Tests, doctests, setup, Mox, StreamData, and coverage.
	15	IEx, Formatting & Analysis	IEx deep dive, formatter, Credo, Dialyzer, Observer, debugging.
PHASE 4: CONCURRENCY & OTP
	16	The Process Model	Spawn, mailboxes, send/receive, links, monitors, registration.
	17	Tasks & Agents	One-off and pooled async work, back-pressure, simple state holders.
	18	GenServer	The client/server behaviour behind most stateful Elixir processes.
	19	Supervision Trees	Supervisors, restart strategies, DynamicSupervisor, child specs.
	20	OTP Applications & Releases	Application callbacks, app env, runtime config, mix release.
	21	Distributed Elixir	Nodes, clustering, global names, PubSub, net-splits and CAP.
PHASE 5: PRODUCTION & ECOSYSTEM
	22	Data & Ecto	Schemas, changesets, queries, migrations, transactions, Multi.
	23	Phoenix Web Framework	Endpoint, router, plugs, contexts, HEEx, channels, deployment.
	24	Phoenix LiveView	Server-rendered rich UI: mount, events, components, streams.
	25	Designing Elixir Systems	Contexts, process boundaries, umbrellas, failure domains.
	26	Performance & Observability	Scheduling, GC, ETS, persistent_term, profiling, telemetry, NIFs.
	27	Numerical & Embedded Elixir	Nx tensors, EXLA, Explorer, Bumblebee, Membrane, Nerves.
PHASE 6: PRACTICE & DEMOS
	28	Lab Examples	Runnable single-file Elixir demos, viewed in the code viewer.
	29	Study Projects	Larger guided programs that combine several chapters at once.
	30	Open Source Projects	Elixir projects worth reading, and what to study in each codebase.
PHASE 7: REFERENCE
	31	References & Resources	Official docs, free tutorials, community, and tooling links.

Free Elixir Resources

Verified free resources to keep learning Elixir after the track — the full categorized list lives on the References & Resources page.

Resource	What it is	Best for
Elixir Getting Started guide	The official step-by-step language guide, updated for every release	First contact with the language, straight from the Elixir team
Mix and OTP guide	Official guided build of a distributed key-value store with Mix and OTP	Learning processes, GenServers, and supervision by building one
Elixir School	Free, community-maintained lessons from basics to advanced OTP, in 25+ languages	A second explanation of any topic in the track
Joy of Elixir	Free online book with a gentle, beginner-first pace	Readers new to programming, or programmers who want a soft start
Exercism Elixir track	Free practice exercises with automated feedback and human mentoring, no install needed	Drilling pattern matching, Enum, and OTP idioms
HexDocs	Documentation for every Hex package, generated by ExDoc	Exact module and function reference while coding
Elixir Forum	The most active Elixir community space, with core-team participation	Asking questions and reading real design discussions
Awesome Elixir	Curated catalog of 13k-star collection of libraries, tools, and resources	Finding a library when you know the problem, not the package name