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@lrytz
lrytz / z-automator.png
Last active October 15, 2024 06:31
Shortcut for Syntax Highlighting in Keynote
#!/usr/bin/env jjs
/*####################################################################################################################################
# As Nashorn does not have http capabilities through XMLHttpRequest (DOM API), we have to use regular Java classes instead.
# This sample shows how this can be acheived without depending on any third party libraries. Just a standard Java 8 JDK.
# Make sure to have JAVA_HOME/bin on your PATH for the shebang to work. Then just chmod +x away and run...
# Alternatively if you're on a non *nix OS, start with jjs -scritping httpsample.js
####################################################################################################################################*/
var url = "https://api.github.com/users/billybong/repos";
var response;
@levand
levand / cider-opinions.md
Last active November 20, 2023 07:50
Why I don't use cider

Why I don't use cider.

This is all personal opinion and a matter of taste. I'm putting it here because people have asked - I'm glad Cider exists and that a lot of people are obviously using it to great effect. This is not an attack on Cider or a an attempt to negate the experience of those who like it, just my own experience.

Also some of the critiques are more properly aimed at nRepl than Cider - I don't use nRepl either, in Emacs. For some reason I have fewer issues with it in Cursive (though I still do have some).

  1. With Cider, there's too much "going on" between Emacs and Clojure. When something glitches, hangs, doesn't return a value, throws an excption, etc (as it does, multiple times a day), I don't know whether the problem is in Emacs, in the Cider client, the nRepl server, one of any of the default middlewares or in my actual program. I run Emacs in inferior lisp using lein trampoline -m clojure.main - if something goes wrong, it's either in Emacs (which is usually obvious) or my program. Mi
@acolyer
acolyer / service-checklist.md
Last active July 19, 2025 17:45
Internet Scale Services Checklist

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

Basic tenets

  • Does the design expect failures to happen regularly and handle them gracefully?
  • Have we kept things as simple as possible?
@kevinhughes27
kevinhughes27 / the_arborist.rb
Last active January 7, 2022 22:53
find un-deleted branches from closed PRs
#!/usr/bin/env ruby
require 'octokit'
require 'highline/import'
require 'colorize'
require 'byebug'
require 'csv'
require 'active_support/time'
username = ask("Enter your Github username: ") { |q| q.echo = true }
Capybara.add_selector :record do
xpath { |record| XPath.css("#" + ActionController::RecordIdentifier.dom_id(record)) }
match { |record| record.is_a?(ActiveRecord::Base) }
end
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active July 22, 2025 15:05
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@jboner
jboner / latency.txt
Last active July 29, 2025 17:15
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@bhenerey
bhenerey / ideal ops.md
Created May 23, 2012 19:40
ideal ops checklist

In a perfect world, where things are done well, not just quickly, I would expect to find the following when joining the company:

Documentation

  • Accurate / up-to-date systems architecture diagram

  • Accurate / up-to-date network diagram

  • Out-of-hours support plan

  • Incident management plan