Upgrading GitHub to Ruby 2.7 
Really low latency multipliers and cryptographic puzzles - Chrome extensions: Finding the missing proof
Hacklang at Slack: A Better PHP 
Project LightSpeed: Rewriting the Messenger codebase for a faster, smaller, and simpler messaging app - Running GitHub on Rails 6.0
- Using OCaml to drive a Raspberry Pi robot car
- Performance @Scale 2019 recap
- A look at OCaml 4.08
- Of Pythons and Camels
- Direct instruction marking in Ruby 2.6
- 5 ways Facebook improved compression at scale with Zstandard
- Making floating point math highly efficient for AI hardware
- Accelerate large-scale applications with BOLT
Using Datadog APM to improve the performance of Homebrew - Repeatable exploratory programming
- Cgo and Python
- Cgo and Python
- AV1 beats x264 and libvpx-vp9 in practical use case
- OCaml all the way down