Valentin Zberea valentinzberea

hi, i'm daniel. i'm a 15-year-old with some programming experience and i do a little bug hunting in my free time. here's the insane story of how I found a single bug that affected over half of all Fortune 500 companies:

say hello to zendesk

If you've spent some time online, you’ve probably come across Zendesk.

Zendesk is a customer service tool used by some of the world’s top companies. It’s easy to set up: you link it to your company’s support email (like [email protected]), and Zendesk starts managing incoming emails and creating tickets. You can handle these tickets yourself or have a support team do it for you. Zendesk is a billion-dollar company, trusted by big names like Cloudflare.

Personally, I’ve always found it surprising that these massive companies, worth billions, rely on third-party tools like Zendesk instead of building their own in-house ticketing systems.

your weakest link

NextJS Background Task Example

An example of how to add a background task (e.g. a queue consumer) to an existing NextJS project.

Setup

Add your background task file
Add a new worker-tsconfig.json, specifically specifying "module": "commonjs" and targeting only the worker source files.
Add convenience functions for building & running to package.json

Then to build once:

Raymond Hettinger's professional at doing code review and architecture review

P vs. NP. Pythonic vs. Non-Pythonic.

How to make use of PEP 8

Golden rule of PEP-8: PEP-8 onto yourself. PEP 8 is style guide, not a law book.
Care about intelligibility, not simply visually better
Transforming (Java) API to pythonic ones

Why not PEP 8

Stevey's Google Platforms Rant

I was at Amazon for about six and a half years, and now I've been at Google for that long. One thing that struck me immediately about the two companies -- an impression that has been reinforced almost daily -- is that Amazon does everything wrong, and Google does everything right. Sure, it's a sweeping generalization, but a surprisingly accurate one. It's pretty crazy. There are probably a hundred or even two hundred different ways you can compare the two companies, and Google is superior in all but three of them, if I recall correctly. I actually did a spreadsheet at one point but Legal wouldn't let me show it to anyone, even though recruiting loved it.

I mean, just to give you a very brief taste: Amazon's recruiting process is fundamentally flawed by having teams hire for themselves, so their hiring bar is incredibly inconsistent across teams, despite various efforts they've made to level it out. And their operations are a mess; they don't real

Resources are listed in no particular order.

Papers

"Literate Programming", Knuth, 1983
"Network Monitoring as a Streaming Analytics Problem", Gupta et al, 2016
"Monitoring and Debugging DryadLINQ Applications with Daphne", Jagannath, Yin, & Budiu, 2011
"The Dataflow Model", Akidau et al, 2015
"Musketeer: all for one, one for all in data processing systems", Gog et al, 2015
"SEDA: An Architecture for Well-Conditioned, Scalable Internet Services", Welsh, Culler & Brewer, 2001

Someone sent me an email asking me what advice I had for new developers. I get this question a bunch, so I wanted to put all my thoughts in one place, that I can update as I get more ideas!

I answered this a bunch on my AMA repo, so here's some initial general answers, before I get to some of the specific questions:

how to find a project to work on: notwaldorf/ama#33
how I learn: notwaldorf/ama#32
what to learn: notwaldorf/ama#51
advice for your first job: notwaldorf/ama#59

	# Alpine image is smaller but Prisma is broken on M1 https://github.com/prisma/prisma/issues/8478
	# FROM node:18-alpine AS builder
	# RUN apk update
	# RUN apk add --no-cache openssl
	FROM node:18-slim AS runner
	RUN apt-get update \
	&& apt-get install -y openssl

	ENV NODE_ENV production
	ENV NEXT_TELEMETRY_DISABLED 1

	# Adapted from https://github.com/vercel/next.js/blob/canary/examples/with-docker/Dockerfile
	# Install dependencies only when needed
	FROM node:16-alpine AS deps
	# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
	RUN apk add --no-cache libc6-compat
	WORKDIR /app
	COPY package.json package-lock.json ./
	RUN npm ci

	# Rebuild the source code only when needed

	require "sqlite3"
	require 'set'
	require 'byebug'
	# Will be rebuilt at any time. Nice and incremental.
	db = SQLite3::Database.new "index.db"

	# Keep prefix indexes for "mos*" searches.
	#
	# TODO: It doesn't seem like SQLITE FTS5 supports synonyms well. That's ok, but
	# we're going to want that. We can download this database from Princeton, write

	defmodule PyramidCalculator do

	@doc """
	iex> PyramidCalculator.pyramid_prices_percents([1, 2, 3], 10)
	[10.0, 33.33333333333333, 56.666666666666664]
	iex> PyramidCalculator.pyramid_prices_percents([1, 2, 3], 40)
	[40.0, 33.333333333333336, 26.666666666666668]
	iex> PyramidCalculator.pyramid_prices_percents([1, 3, 7, 22], 5)
	[5.0, 10.517241379310345, 21.551724137931036, 62.93103448275862]
	"""