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pudquick /
Last active June 24, 2024 19:41
Lightly "sandboxed" homebrew on macOS

brew is a bad neighbor

This isn't a guide about locking down homebrew so that it can't touch the rest of your system security-wise.

This guide doesn't fix the inherent security issues of a package management system that will literally yell at you if you try to do something about "huh, maybe it's not great my executables are writeable by my account without requiring authorization first".

But it absolutely is a guide about shoving it into its own little corner so that you can take it or leave it as you see fit, instead of just letting the project do what it likes like completely taking over permissions and ownership of a directory that might be in use by other software on your Mac and stomping all over their contents.

By following this guide you will:

  • Never have to run sudo to forcefully change permissions of some directory to be owned by your account
gboudreau /
Last active July 14, 2024 21:35 — forked from Ingramz/
Export TOTP tokens from Authy
paulp / global.sbt
Last active October 16, 2018 19:09
continuous compilation of the sbt build
// These lines go in ~/.sbt/0.13/global.sbt
watchSources ++= (
(baseDirectory.value * "*.sbt").get
++ (baseDirectory.value / "project" * "*.scala").get
++ (baseDirectory.value / "project" * "*.sbt").get
addCommandAlias("rtu", "; reload ; test:update")
addCommandAlias("rtc", "; reload ; test:compile")
addCommandAlias("ru", "; reload ; update")
import React from 'react'
import Router from 'react-router/BrowserRouter'
import Match from 'react-router/Match'
import Link from 'react-router/Link'
import Redirect from 'react-router/Redirect'
function elementInViewport(el) {
var top = el.offsetTop
var left = el.offsetLeft
var width = el.offsetWidth
function how-big-is {
local library="$1"
npm install "$library" uglifyjs webpack
echo "require('$library')" > index.js
./node_modules/.bin/webpack . build.js
./node_modules/.bin/uglifyjs build.js -cmo build-min.js 2> /dev/null
gzip -c build-min.js > build-min.js.gz
ls -lh build*
andymatuschak /
Last active June 12, 2024 04:17
A composable pattern for pure state machines with effects (draft v3)

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

kgrz /
Created June 20, 2016 05:12
Possible workaround for installing nokogiri 1.6.8 on OSX with brewed libxml2 2.9.4


The following commands fail on OSX:

gem install nokogiri
gem install nokogiri -- --use-system-libraries
gem install nokogiri -- --use-system-libraries --with-xslt-dir=/usr/local/opt/libxslt --with-xml2-dir=/usr/local/opt/libxml2


maxvt /
Last active July 5, 2024 13:01
Infrastructure Secret Management Software Overview

Currently, there is an explosion of tools that aim to manage secrets for automated, cloud native infrastructure management. Daniel Somerfield did some work classifying the various approaches, but (as far as I know) no one has made a recent effort to summarize the various tools.

This is an attempt to give a quick overview of what can be found out there. The list is alphabetical. There will be tools that are missing, and some of the facts might be wrong--I welcome your corrections. For the purpose, I can be reached via @maxvt on Twitter, or just leave me a comment here.

There is a companion feature matrix of various tools. Comments are welcome in the same manner.

nruth /
Created January 19, 2016 03:07
rails migration pg_dump: invalid option -- 'i'

If you start to see something like this, e.g. on Heroku since they installed the postgres 9.5 client libraries on their dynos

/usr/lib/postgresql/9.5/bin/pg_dump: invalid option -- 'i'
Try "pg_dump --help" for more information.
rake aborted!
Error dumping database
/app/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.4/lib/active_record/tasks/postgresql_database_tasks.rb:55:in `structure_dump'
arturmkrtchyan /
Last active August 7, 2023 18:55
Apache Spark Hidden REST API
curl http://spark-cluster-ip:6066/v1/submissions/status/driver-20151008145126-0000