Lambros Petrou lambrospetrou

Akka and Kotlin coroutines: ♡

I've experimented with Kotlin and coroutines in programming Akka. And I must say, I really like the combination so far.
But before I go into it some brief preliminaries for those who don't know Akka and actors.

Actors and Akka

Actors are a programming model that fits cloud native architectures particularly well. Being highly available and scaling horizontally. All while embracing the realities of multiple servers collaborating, server instances coming and going and the network having hickups.

On the JVM Akka is the prominent actor framework. It's been around for a while now and as a result it's highly reliable, well thought out and offers a wide programming eco system. My own interest in Akka is because of its suitability for software systems that can only be built with business events as a key construct and thinking model. And then of course materialized views, CQRS and near real-time data streams play a big role in constructing those systems.

React recently introduced an experimental profiler API. This page gives instructions on how to use this API in a production release of your app.

Table of Contents

Profiling in production
- Create React App
- Webpack 4

Profiling in production

React DOM automatically supports profiling in development mode for v16.5+, but since profiling adds some small additional overhead it is opt-in for production mode. This gist explains how to opt-in.

	[
	{
	"key": "cmd+;",
	"command": "editor.action.goToDeclaration"
	},
	{
	"key": "shift+cmd+;",
	"command": "workbench.action.navigateBack",
	"when": "canNavigateBack"
	}

	#!/bin/bash

	# This script takes a video file as input and converts it into an HLS (HTTP Live Streaming) playlist with multiple resolutions and bitrates. It also generates a thumbnail image from the video.

	# Check if an input filename is provided
	if [ -z "$1" ]; then
	echo "Usage: $0 input_filename (without extension) [-t]"
	exit 1
	fi

	# THIS LINUX SETUP SCRIPT HAS MORPHED INTO A WHOLE PROJECT: HTTPS://OMAKUB.ORG
	# PLEASE CHECKOUT THAT PROJECT INSTEAD OF THIS OUTDATED SETUP SCRIPT.
	#
	#

	# Libraries and infrastructure
	sudo apt update -y
	sudo apt install -y \
	docker.io docker-buildx \
	build-essential pkg-config autoconf bison rustc cargo clang \

	/** @type {import('tailwindcss').Config} */
	module.exports = {
	// Change this to your project source folder
	content: ['./web/*/.go'],
	plugins: [],
	theme: {
	extend: {},
	}
	}

	FROM golang:1.21.0-bullseye as builder

	COPY . /workdir
	WORKDIR /workdir

	ENV CGO_CPPFLAGS="-D_FORTIFY_SOURCE=2 -fstack-protector-all"
	ENV GOFLAGS="-buildmode=pie"

	RUN go build -ldflags "-s -w" -trimpath ./cmd/app

	#!/usr/bin/env bash

	cd $(dirname $0)

	docker run --rm -it -v "$(pwd)":/home/rust/src -v cargo-git:/home/rust/.cargo/git -v cargo-registry:/home/rust/.cargo/registry -v "$(pwd)/target/":/home/rust/src/target ekidd/rust-musl-builder:nightly-2021-01-01 sudo chown -R rust:rust /home/rust/.cargo/git /home/rust/.cargo/registry /home/rust/src/target

	docker run --rm -it -v "$(pwd)":/home/rust/src -v cargo-git:/home/rust/.cargo/git -v cargo-registry:/home/rust/.cargo/registry -v "$(pwd)/target/":/home/rust/src/target ekidd/rust-musl-builder:nightly-2021-01-01 cargo build --release

	[Unit]
	Description = Foo HTTP server
	Requires = foo.socket
	After = multi-user.target

	[Service]
	User = www-data
	Group = www-data
	WorkingDirectory = /var/foo
	ExecStart = /var/foo/bin/foo-server

	(set! warn-on-infer true)

	(def ^js wifi (js/require "Wifi"))
	(def ^js http (js/require "http"))

	(def n (atom 0))

	(defn build-response []
	(str
	"<html>"