Today I Learned

Welcome to my digital garden/second brain where I try to dump everything I learn in its most raw form 🌱

Categories

• AWS [1]

• Android [1]

• Artificial Intelligence [2]

• Career [9]

• Coding Practices [5]

• Community Building [5]

• Compilers [1]

• Data Warehouse [1]

• Databases [9]

• DevOps [7]

• Distributed Computing [2]

• Flutter [3]

• Git [10]

• Go [15]

• HotWheels [1]

• Meta [3]

• Miscellaneous [14]

• People [2]

• Psychology [2]

• Python [19]

• Sales [1]

• Shell [29]

• Software Design [1]

• Startups [1]

• Vim [8]

• WebDev [5]

• ffmpeg [3]

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AWS

• AWS Elastic Container Registry & Elastic Container Service

Android

• Running headless Android Emulator

Artificial Intelligence

• Fundamentals of LLMs

• Retrieval-Augmented Generation (RAG)

Career

• Beating Burnout: Some Thoughts & Resources

• Exploring Large Codebases

• Full employment theorem

• Invest in decision-making skills early in career

• Leveling up from Software Engineer to Senior Software Engineer

• Mentoring

• Pros & Cons of working professionally

• Questions to ask in an interview

• Writing Cover letter - Tips

Coding Practices

• Naming Variables & Functions

• Routines: Functions & Procedures

• SOLID: Design Principles

• Writing Comments

• Writing Functions

Community Building

• How to motivate and encourage volunteers

• Questions for Women in Tech

• Questions to ask every Community Builder

• Questions to ask every community volunteer

• What does a Community Lead (or Organiser) do?

Compilers

• Reference Counting v/s Garbage Collection

Data Warehouse

• Why Reverse ETL

Databases

• CHECK constraint v/s EXCLUSION constraint

• Clustered & Non-clustered Indexes

• Collected notes on Database Sharding 🗃

• EXPLAIN queries in PostgreSQL

• Getting JSON data from PostgreSQL

• Inserting NULL wherever possible on Postgres

• List all values of a custom enum in Postgres

• Postgres 14 Internals: Data Organisation

• SQLite db optimization with ROWID

DevOps

• Blue-Green Deployment Strategy

• Chaos Engineering 🐒️

• Docker image load & save

• Docker multi-platform build using buildx

• Docker 🐋 quick guide

• Set up a SFTP server using AWS Transfer Family

• Simulating AWS Lambda locally using LocalStack

Distributed Computing

• 8 Fallacies of Distributed Computing

• Distributed Hash Tables (DHT)

Flutter

• Decrease lottie size dynamically in flutter

• Get all Hive 🐝 boxes

• Null aware operators in Dart

Git

• Auto-correct Git commands

• Find default git branch name

• Get current branch name

• Get last commit date of file

• Get list of all branches

• How to undo anything in Git

• Parsing `git status` for tracked & untracked changes

• Using multiple git user configs with credentials store (multiple github accounts)

• View a python function's history over-time with Git & FZF

• View git diff since the last git pull

Go

• Add version info in Go projects

• Anatomy of `go.mod` file

• Clearing terminal screen in Go

• Concurrency Comparison: Go v/s Elixir

• Convert `string` to `int` and vice-versa in Go

• Creating Python's next() alternative using Go Closures

• Measure Exection time in Go

• Memoization using Golang Generics

• Parsing changelogs using regex with Go

• Reading & Setting Environment variables in Go

• Resolving merge conflicts in go.sum

• Splitting strings in Go

• Strategy Design Pattern in Go

• Using local Go package path

• Where are my build files when I use `go run`

HotWheels

• Find when a car was manufactured

Meta

• Checklist for documenting a medium to large scale system architecture

• Tech Writing Cookbook - Writing tips for you & my future self

• The good that comes with maintaining blogs

Miscellaneous

• All .odp files are zip archives

• Creating a Regex Compiler/Parser - Research

• Deploying to Heroku

• Internet search tips & tricks for developers

• Killing Open Ports in Linux

• Navigating your way through Github API

• Net Promoter Score (NPS)

• Releases on GitHub

• SEO Tools

• Semantic Versioning

• Streaming videos, things behind the curtain

• UI-UX Tools to ease your life

• What's a Procfile 👀

• Writing Cleaner Commits - Template

People

• Interesting Views on Tech Hiring

• Questions for you as a tech worker

Psychology

• Einstellung effect

• Interference theory

Python

• Check if csv has header in python

• Check indentation errors in python 🐍

• Cryptographically strong random string

• Difference b/w Class & Function Based Views in Django

• Dividing Time deltas in python - Difference b/w 2 datetime values

• Downloading files using python the correct way

• Easy & Lazy way to flatten a python list

• Everything about date & time in python

• Fastest Python First: Tips and Tricks 🏃

• Functional Programming in Python 🐍

• Generate random secure password using python

• Measure code execution time using timer

• PEP8 - the fashion 💃 police of Python

• Preventing global package install with `PIP_REQUIRE_VIRTUALENV`

• Publishing a Package on PyPI

• Specify dev dependencies in setup.py

• Using defaultdict to handle key not in dict

• Using difflib in Python for fuzzy string matching

• Writing Unit Tests in Python ✅

Sales

• Consultative Selling / Solution Selling

Shell

• Alternative to 'ls' commnand

• Changing Display Configuration using xrandr

• Changing string case in bash

• Check battery status

• Colorize Output in Terminal

• Copy one file to multiple files in Bash

• Extract file id from drive shareable link

• FZF: Tips and Tricks

• Find boot-up time in linux 🐧

• Find files changed 7 days ago

• Find fonts available in Linux

• Finding all Python Virtual Environments in your system

• Finding the file creation date/time on Linux

• Generate a RSS Feed of recent files inside a Git repository

• Generate random numbers in bash

• Get Release notes from Github API

• Get System info using Shell Commands

• Get Total System Memory using vmstat command

• Get total download stats from GitHub & Homebrew

• Line Discipline in Unix/Linux Machines

• Line Editors in Linux, Tips and Tricks

• Monitor network (data) usage

• Print lines between 2 words

• Print value of `$PATH` in readable format

• Random emoji 😲 in one line

• Reuse arguments from last command

• Shell Redirections ↔ Quick Guide

• Writing a simple file watcher using GNU Utils

• grep cheatsheet

Software Design

• Design by contract (DbC)

Startups

• Pitchdeck Resources

Vim

• Configuring LSP on NeoVim

• Convert bulleted/unordered lists to numbered lists

• How to make Vim faster ⚡️

• My Vim Cheatsheet

• Searching your way through vim

• Sum column values in Vim

• ctags in Vim - Quick Cheatsheet

• vim surround: quick cheatsheet

WebDev

• Auto-complete in plain HTML

• I learned about Open Graph protocol

• Live Editing HTML

• Turning Emojis to site favicons

• `async` & `defer` Attributes

ffmpeg

• Converting videos to High quality GIFs

• Generate Video thumbnail using ffmpeg

• Record your Desktop using `ffmpeg`

Usage

See USAGE.md to know how I use this repository.

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