By Michael Dwan 6 min Read We’re working on super fun problems and are looking for more people to join us. In particular: we’re looking for full-stack developers. We expect this will be a good role for early-to-mid-level career developers. Some BackgroundFly.io’s users int...
Read more about Fly.io Is Hiring Full-Stack Developers
By Thomas Ptacek 25 min Read This is not really a post about Fly.io, though I'll talk about us a little up front to set the scene. The last several weeks of my life have been about API security. I'm working on a new permissions system for Fly.io, and did a bunch of resea...
Read more about API Tokens: A Tedious Survey
By Mark Ericksen 8 min Read As a developer, has your manager ever come and asked a question like, "How much money are we making?" If you were a line-of-business developer at a global insurance company, you'd reach for your handy, nosebleed-expensive Business Intelligence (BI...
Read more about Better Business Intelligence in Elixir with Livebook By Mark Ericksen 3 min Read The Phoenix Framework is the go-to web framework for Elixir developers. A recent PR was merged that replaces the use of node, npm, and webpack with esbuild. For those new to esbuild, it is written in Go so it compiles to native code and runs reall...
Read more about FYI: Phoenix drops webpack and npm for esbuild
By Kurt Mackey 9 min Read 100 milliseconds is the magic number. For a backend application, a sub-100ms response time is effectively instantaneous, and people love using "instant" apps. Since we're all dirty capitalists, we'd add: if people love your app, you'll make more m...
Read more about Last Mile Redis By Mark Ericksen 2 min Read Livebook 0.2 was released. The big news here was the announcement of "Kino" (meaning "cinema"). It's a client-side focused feature that animates data changes. José Valim created a video demonstrating some of the new Livebook features. Use this lin...
Read more about FYI: Livebook 0.2 with Kino
By Kurt Mackey 12 min Read This is a story about a cool hack we came up with at Fly. The hack lets you do something pretty ambitious with full-stack applications. What makes it cool is that it’s easy to get your head around, and involves just a couple moving parts, assemble...
Read more about Globally Distributed Postgres By Alexander Koutmos 8 min Read Fly.io takes Docker containers and converts them into fleets of Firecracker micro-vms running in racks around the world. If you have a working Docker container, you can run it close to your users, whether they're in Singapore or Amsterdam, with ju...
Read more about Monitoring Elixir Apps on Fly.io With Prometheus and PromEx
By Kurt Mackey 6 min Read Anyways, we’re hiring for our SRE team. You can read that introduction and get a good idea of how intense our SRE challenge is. To further set the scene, two important true things about ops at Fly.io: ops is a very big deal here, and, because we’r...
Read more about Fly Is Hiring SREs By Mark Ericksen 5 min Read Elixir, Erlang, and really just the BEAM has a feature called "Observer". It's fun showing it to people new to Elixir because it's just so cool! It's a WxWidgets graphical interface that connects in realtime to a running Erlang node and lets you "...
Read more about Observing Elixir in Production By Mark Ericksen 6 min Read Every application has that core, most important thing that it does. It is the reason the application exists. It's that central idea that everything else is there to support. A major hurdle for new developers joining a project can be understanding ...
Read more about Livebook is a secret weapon for documentation By Thomas Ptacek 9 min Read We’ve written a bit, for a general audience, about how Fly collects and manages metrics. If you’re just sort of generally interested in metrics and observability, go read that first. Meanwhile, if you’re a Fly user, or considering becoming such a...
Read more about Hooking Up Fly Metrics