steipete

#!/usr/bin/env bun
"use strict";

const fs = require("fs");
const { execSync } = require("child_process");
const path = require("path");

// ANSI color constants
const c = {
  cy: '\033[36m',  // cyan

mbuhot

The Ultimate Guide to Gleam's Typed Actors

How Gleam builds type-safe concurrent programming on the BEAM

The BEAM virtual machine (which runs Erlang, Elixir, and now Gleam) is renowned for its actor model concurrency. But traditionally, message passing has been untyped - any process can send any message to any other process, leading to runtime crashes when unexpected messages arrive.

Gleam changes this game entirely by building a sophisticated type-safe layer on top of BEAM's primitives. In this deep dive, we'll explore exactly how Gleam achieves compile-time type safety for concurrent programming, revealing the elegant implementation strategies that make it all work.

The Foundation: BEAM Processes and Raw Message Passing

bcardarella

defmodule Task do
  defp await_one(tasks, timeout \\ 5_000) when is_list(tasks) do
    awaiting =
      Map.new(tasks, fn %Task{ref: ref, owner: owner} = task ->
        if owner != self() do
          raise ArgumentError, invalid_owner_error(task)
        end

        {ref, true}
      end)

thmsmlr

When writing Elixir code, perfer the following style guidlines:

1. Elixir developers tend to create many small functions in their modules. I DO NOT LIKE THIS. Instead create functions that fully capture a conceptual task, even if it makes that function longer. A good rule of thumb is, if a private function is only called once within a module, it should've been inlined.


For example:

DON'T DO THIS:

```elixir

steipete

Moved to https://github.com/steipete/Terminator

thmsmlr

  @default_timeout 100
  @check_interval 10

  # Test Helpers

  defp wait_for(fun, timeout \\ @default_timeout) do
    start_time = System.monotonic_time(:millisecond)
    ref = make_ref()

    try do

cigrainger

Mix.install(
  [
    {:phoenix_playground, "~> 0.1.0"},
    {:openai, "~> 0.6.1"},
    {:makeup, "~> 1.1.2"},
    {:makeup_elixir, "~> 0.14"}
  ],
  config: [
    openai: [
      api_key: System.get_env("OPENAI_API_KEY"),

nyku

#!/bin/bash

# Usage: 
# ./resize_and_convert.sh ~/Desktop/folder-with-images

# Check if the correct number of arguments is provided
if [ "$#" -ne 1 ]; then
  echo "Usage: $0 source_path"
  exit 1
fi

aeons

config :phoenix, :json_library, ErlJson

rsms

Hurdles of macOS distribution

• Code signing
• Notarization
• Quarantine
• Distribution vehicles
• Notes

Code signing