Andrea Crotti AndreaCrotti

Emacs, Python, Treesitter and Eglot

Treesitter (“better”/faster syntax highlighting)

Make sure you have Emacs with treesitter support:
M-: (treesit-available-p) RET should return t
Make sure you have installed python treesitter grammar

Architecture in Elm

This document is a collection of concepts and strategies to make large Elm projects modular and extensible.

We will start by thinking about the structure of signals in our program. Broadly speaking, your application state should live in one big foldp. You will probably merge a bunch of input signals into a single stream of updates. This sounds a bit crazy at first, but it is in the same ballpark as Om or Facebook's Flux. There are a couple major benefits to having a centralized home for your application state:

There is a single source of truth. Traditional approaches force you to write a decent amount of custom and error prone code to synchronize state between many different stateful components. (The state of this widget needs to be synced with the application state, which needs to be synced with some other widget, etc.) By placing all of your state in one location, you eliminate an entire class of bugs in which two components get into inconsistent states. We also think yo

(This gist is pretty old; I've written up my current approach to the Pyramid integration on this blog post, but that blog post doesn't go into the transactional management, so you may still find this useful.)

Fast and flexible unit tests with live Postgres databases and fixtures

I've created a Pyramid scaffold which integrates Alembic, a migration tool, with the standard SQLAlchemy scaffold. (It also configures the Mako template system, because I prefer Mako.)

I am also using PostgreSQL for my database. PostgreSQL supports nested transactions. This means I can setup the tables at the beginning of the test session, then start a transaction before each test happens and roll it back after the test; in turn, this means my tests operate in the same environment I expect to use in production, but they are also fast.

I based my approach on [sontek's blog post](http://sontek.net/blog/

	#!/usr/bin/env bb
	#_" -- mode: clojure; --"
	;; Based on https://github.com/babashka/babashka/blob/master/examples/image_viewer.clj

	(ns http-server
	(:require [babashka.fs :as fs]
	[clojure.java.browse :as browse]
	[clojure.string :as str]
	[clojure.tools.cli :refer [parse-opts]]
	[org.httpkit.server :as server]

	(ns switch
	(:require [clojure.pprint :as pprint]))

	(defn project-clj-map [filename]
	(->> (slurp filename)
	(read-string)
	(drop 1)
	(partition 2)
	(map vec)
	(into {})))

	(defn divides?
	[n d]
	(= 0 (mod n d)))

	(defn remove-factor
	[n d]
	(if (divides? n d)
	(remove-factor (/ n d) d)
	n))

	;; React supports "refs" as a way for a component to get a
	;; handle to its children. Classically, refs were string-based.
	;; Recent versions of React support callback attributes as a
	;; more elegant variant of accessing DOM notes or components.
	;;
	;; This example uses a Form-3 component as per
	;; https://github.com/Day8/re-frame/wiki/Creating-Reagent-Components
	;;
	;; For callback refs, see React's documentation
	;; https://facebook.github.io/react/docs/more-about-refs.html

	/*------------------------------------------
	Responsive Grid Media Queries - 1280, 1024, 768, 480
	1280-1024 - desktop (default grid)
	1024-768 - tablet landscape
	768-480 - tablet
	480-less - phone landscape & smaller
	--------------------------------------------*/
	@media all and (min-width: 1024px) and (max-width: 1280px) { }

	@media all and (min-width: 768px) and (max-width: 1024px) { }

	/*==================================================
	= Bootstrap 3 Media Queries =
	==================================================*/

	/========== Mobile First Method ==========/

	/* Custom, iPhone Retina */
	@media only screen and (min-width : 320px) {

	}