Onboarding Guide

Non-Technical

Consulting vs Contracting

• Greenfield vs Brownfield

  • Greenfield software is the software that we design and develop from scratch. Brownfield software is one where something already exists and we have to add functionality and/or features to it.

  • Obvious mostly works in greenfield software development but we occasionally work with brownfield stuff too.

Engineering Philosophy

• First Principles

• Documentation practices (ADR, project documentation etc.)

Technical

• Trunk Based Development (TBD)

  • Use of feature flags for features that span over multiple PRs

  • Habit of raising PRs everyday

  • Prioritising review over writing new code (dropping everything to review a PR)

  • Show the Simple repo for daily branches, continuous integration and Github Actions for having checks in place

• Code Reviews & Pull Requests

  • Read the Google code review guide and highlight some important practices that we follow as a team

• Estimation Practices

  • How engineers get estimations wrong?

  • Estimation based on complexity and not time

• Testing

  • Testing pyramid

    • Unit and Integration testing

    • Importance of testing

  • Covariance and contra-variance in tests

  • Testing codelabs for beginners:

    • Testing basics

    • Test doubles and dependency injection

  • Test doubles: Fakes, mocks and Stubs

Mobius

• Functional Core and Imperative Shell

  • Pure functions

  • Imperative and functional programming basics

  • Boundaries Talk by Gary Bernhardt - YouTube / Original Website

    • Usage of Functional Core & Imperative Shell in above talk - Video Link

• Introduction to State Machines

• Introduction to Mobius

  • Mobius onboarding

    • Pairing activity using Counter example

    • Test-driven development

    • Introduce the login example

    • Pair on drawing the state diagram for login screen

    • Introduce Effect and EffectHandler

    • Introduce to Views and View Renderers

    • Introduce Init and wire Mobius loop

  • Individual Activity: Re-write the take-home exercise in Mobius