Jordan Arentsen blissdev

A vision for data interchange in Elm

How do you send information between clients and servers? What format should that information be in? What happens when the server changes the format, but the client has not been updated yet? What happens when the server changes the format, but the database cannot be updated?

These are difficult questions. It is not just about picking a format, but rather picking a format that can evolve as your application evolves.

Literature Review

By now there are many approaches to communicating between client and server. These approaches tend to be known within specific companies and language communities, but the techniques do not cross borders. I will outline JSON, ProtoBuf, and GraphQL here so we can learn from them all.

How to Change Open Files Limit on OS X and macOS

This text is the section about OS X Yosemite (which also works for macOS Sierra) from https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/#mac-os-x

The last time i visited this link it was dead (403), so I cloned it here from the latest snapshot in Archive.org's Wayback Machine https://web.archive.org/web/20170523131633/https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/

Mac OS X

To check the current limits on your Mac OS X system, run:

New home: https://github.com/glebm/render-whitespace-on-github

How to test NVDA screen reader behaviour on a Mac:

Download Microsoft Edge VM from https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/
Download Virtualbox and import the Edge VM image.

Then in the VM:

Install guest addons in the VM
Download & install latest NVDA from nvaccess.org
Download & install SharpKeys and use it to map left an alternative key (eg. Left Ctrl) to the Insert key. This is needed because Macs do not typically have an “Insert” key which is the prefix for many NVDA commands.

Vim without NERD tree or CtrlP

I used to use NERD tree for quite a while, then switched to CtrlP for something a little more lightweight. My setup now includes zero file browser or tree view, and instead uses native Vim fuzzy search and auto-directory switching.

Fuzzy Search

There is a super sweet feature in Vim whereby you can fuzzy find your files using **/*, e.g.:

:vs **/*<partial file name><Tab>

	function __git_fzf_is_in_git_repo
	command -s -q git
	and git rev-parse HEAD >/dev/null 2>&1
	end

	function __git_fzf_git_status
	__git_fzf_is_in_git_repo; or return
	git -c color.status=always status --short \| \
	fzf -m --ansi --preview 'git diff --color=always HEAD -- {-1} \| head -500' \| \
	cut -c4- \| \

	/**
	* Prevent body scroll and overscroll.
	* Tested on mac, iOS chrome / Safari, Android Chrome.
	*
	* Based on: https://benfrain.com/preventing-body-scroll-for-modals-in-ios/
	* https://stackoverflow.com/a/41601290
	*
	* Use in combination with:
	* html, body {overflow: hidden;}
	*

	# The MIT License
	# SPDX short identifier: MIT

	# Further resources on the MIT License
	# Copyright 2017 Denis Gladkikh (https://www.outcoldman.com/en/archive/2017/07/19/dbhist/)

	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

	# Provide locationis.ini to mount in the server
	# Either provide locations yourself or use the official ones with an API key.
	# See https://sites.google.com/a/webpagetest.org/docs/private-instances/locations for details

	docker run -v $HOME/tmp/locations.ini:/var/www/html/settings/locations.ini -p 8080:80 --name wptserver iteratec/wptserver
	# -> mounts the locations.ini file in the server -> use localhost:8080 to access

	Price breakdown vs DigitalOcean, Vultr and Linode:

	RAM / CPU Cores / STORAGE / Transfer

	$5/mo
	LightSail: 512MB, 1, 20GB SSD, 1TB
	DO: 512MB, 1, 20GB SSD, 1TB
	VULTR: 768MB, 1, 15GB SSD, 1TB

	$10/mo