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@alanpeabody
alanpeabody / my_app.ex
Last active July 18, 2024 05:22
Websockets in Elixir with Cowboy and Plug
defmodule MyApp do
use Application
def start(_type, _args) do
import Supervisor.Spec, warn: false
children = [
Plug.Adapters.Cowboy.child_spec(:http, MyApp.Router, [], [
dispatch: dispatch
])
@ygotthilf
ygotthilf / jwtRS256.sh
Last active July 28, 2024 08:52
How to generate JWT RS256 key
ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
# Don't add passphrase
openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
cat jwtRS256.key
cat jwtRS256.key.pub
@simpsoka
simpsoka / philosophy.md
Last active July 2, 2024 07:05
simpsoka product philosophy

Product managers

  • Seek out failure, it teaches us to think like a scientist. If you start with a hypothesis, then try to prove yourself wrong, you’re bound to make much better decisions. You have to be willing to fail, and that in itself is going to help you build confidence and be more convicted about what your strategy is in the end.
  • There are hundreds of methods for building products and running teams. As a quality PM, it's important to have an open mind about all of it, but finding your own process and philosophy can be grounding. It helps you find your pillars so that you don't smash into things while you're building. Remember, however, that you can always find a budget for remodeling. 😉
  • The beauty of a good process is when it just becomes how you do your work. When you forget you're following a process at all is when you know the process is working for you, your team, your company, and your customers.
  • The advice I give new Product Managers or PMs coming onto a team for the first

A primer on x86 assembly with GNU assembler

When it comes to assembly language, it isn't as hard as many people think. Fundamentally, you write short, human-readable commands for the processor to execute (your assembly code) and then use a tool (the actual assembler) to translate your code into machine-readable binary instructions. Unlike high-level languages, assembly language is very simple and doesn't have that many features. The difficulty is to deal with memory and build more complex flows (e.g. loops or I/O) from the simple primitives that the assembly language gives you.

Registers and instructions

CPUs usually have small, very fast storage available for the data that is used in its instructions. This kind of storage is much smaller but also much faster than the RAM and is called registers. An x86 processor has a bunch of them to store generic data, manage the stack, keep track of the current instruction and other administrative inform