Global Presence; I made a thing

This page summarizes the projects mentioned and recommended in the original post on

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  • global-presence

    The source code is here. It not exactly battle-tested, production-grade finely-tuned stuff, but it does some interesting things and it works. The relevant bits are mostly under app/lib, app/channels, and app/reflexes. Feel free to plagiarise it ruthlessly.

  • keydb

    KeyDB server on Fly (by fly-apps)

    The KeyDB setup I used was a customised version of this example helpfully provided by, deployed in multiple regions alongside the app, with some modest storage volumes attached.

  • Appwrite

    Appwrite - The Open Source Firebase alternative introduces iOS support . Appwrite is an open source backend server that helps you build native iOS applications much faster with realtime APIs for authentication, databases, files storage, cloud functions and much more!

  • KeyDB

    A Multithreaded Fork of Redis

    KeyDB is a fork of (everyone's favourite cache store) Redis, and it's messaging protocol and API is 100% compatible with Redis. What that means is you can just point any Redis client (like Hiredis or redis-rb) at a KeyDB instance, and it'll Just Work™️, with no changes required. The KeyDB selling points are: 1) multi-threading by default, and a lot of work was ploughed in to high performance around multi-threading in KeyDB, 2) compatible with all the features of regular Redis, 3) some advanced features which Redis only offers in it's paid/enterprise version are included for free in KeyDB, and the big one for me is multi-active replication, which is what I'm playing with here.

  • flyctl

    Command line tools for services

    I've been playing with for a while and trying to get my head around it's implications for the general Web Dev landscape. If you haven't heard of it yet, it's a platform that allows deploying apps to multiple datacenters around the world, with Anycast DNS to automatically route incoming requests to the closest datacenter. Pretty edgy. Essentially it provides devs with a set of superpowers that were previously only available to large tech companies.

  • stimulus_reflex

    Build reactive applications with the Rails tooling you already know and love.

    CableReady is a powerful library for doing live DOM updates in Rails apps, and amongst many other things it enables pushing client-side DOM updates from the server-side. It's part of the StimulusReflex stack.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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