davidchambers

A woman has two children, (at least) one of whom is a boy. What's the probability that she has two boys?

       B    B-B   1/4
      /
     /
    B
   / \
  /   \
 /     G    B-G   1/4

/

sstephenson

Simple file/stream encryption using OpenSSL

Create and store a 512-byte random encryption key named secret:

$ mkkey secret

Encrypt the contents of file with the secret key and write it to file.enc:

$ encrypt secret < file > file.enc

74hc595

// Playground - noun: a place where people can play

import Cocoa

protocol UnitBase {
    class var unitLabel:String { get }
}

// T: the unit
// U: its inverse

mveytsman

ARG PG_VERSION=12.5
ARG VERSION=dev


FROM golang:1.16 as flyutil
ARG VERSION

WORKDIR /go/src/github.com/fly-examples/postgres-ha
COPY . .