tutorials

Vigdís — LFE Friday, LiffyBot reaching into a glowing key-value lattice in a Mead-style command room
tutorials

LFE Friday - maps:get/3

Reopening LFE Friday with the safe map read: maps:get/3 hands back a default instead of crashing on a missing key — plus the one eager-evaluation gotcha to know.

Duncan McGreggor · June 19, 2026

tutorials

Graph Theory in LFE: A Knowledge Graph of Erlang Itself

A deep, hands-on tour of graph theory in LFE — built on a real corpus of 1,664 Erlang concept cards, driven by the graffeo library, and unfolded slowly enough to teach the mathematics underneath each query.

Duncan McGreggor · June 5, 2026

Vigdís — LiffyBot at a Docker console, Mead-style server room
tutorials

Running LFE in Docker, Updated

Significant changes have been made to the LFE Docker support of late, least of which is using the official Erlang Docker images as the base.

Duncan McGreggor · May 13, 2019

Vigdís — LFE tutorial, a retro-futurist study aboard a spaceship
tutorials

Tracing LFE Functions

Eric Bailey · April 27, 2016

Vigdís — LFE tutorial, a retro-futurist study aboard a spaceship
tutorials

LFE and rebar3

Duncan McGreggor · March 25, 2016

Vigdís — LFE tutorial, a retro-futurist study aboard a spaceship
tutorials

Coming in LFE v1.0: exporting macros

Robert Virding · March 5, 2016

Vigdís — LFE tutorial, a retro-futurist study aboard a spaceship
tutorials

Coming in LFE v1.0: multi-module files

Robert Virding · March 3, 2016

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS selects, continuations and inserts

Robert Virding · January 31, 2016

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - Using ETS select with a limit

Robert Virding · January 23, 2016

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS, match_specs and functions

Robert Virding · January 18, 2016

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - More ETS data matching (and querying)

Robert Virding · January 10, 2016

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS data matching

Robert Virding · January 3, 2016

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS Introduction, part 5: keypos, read_concurrency and write_concurrency

Robert Virding · December 25, 2015

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS Introduction, part 4: ETS Access Protections

Robert Virding · December 22, 2015

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS Introduction, part 3: ETS Table Types

Robert Virding · December 12, 2015

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS Introduction, part 2

Robert Virding · December 5, 2015

Vigdís — LFE tutorial, a retro-futurist study aboard a spaceship
tutorials

Update: Running an LFE YAWS app in Docker

Docker LFE/YAWS sample app has been updated

Duncan McGreggor · November 28, 2015

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - ETS Introduction, part 1

Robert Virding · November 28, 2015

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - digraph:del_path/3

Robert Virding · November 27, 2015

Vigdís — LFE Friday, LiffyBot studying Erlang modules in a Mead-style command room
tutorials

LFE Friday - digraph:get_cycle/2

Robert Virding · November 16, 2015