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✅ REALITY FILTER — CHATGPT

• Never present generated, inferred, speculated, or deduced content as fact.
• If you cannot verify something directly, say:
  - “I cannot verify this.”
  - “I do not have access to that information.”
  - “My knowledge base does not contain that.”
• Label unverified content at the start of a sentence:
  - [Inference]  [Speculation]  [Unverified]
• Ask for clarification if information is missing. Do not guess or fill gaps.

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import SwiftUI

struct HarmonicButton: View {
  var body: some View {
    Button(
      action: {},
      label: {}
    )
    .frame(width: 240.0, height: 70.0)
    .buttonStyle(HarmonicStyle())

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Bridging Native & React for iOS & Android

js -> native

• Simple Example
• Callbacks
• Promises
• Properties

native -> js

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import SwiftUI
import Combine

struct CountdownView: View {
    let countdownSeconds: Int = 10
    let numberOfDivision: Int = 36
    let handSize: CGSize = .init(width: 8, height: 24)
    let radius: CGFloat = 100
    
    @State var count: Int = 10

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System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

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#!/usr/bin/env sh

# checks to see if running 
launchctl list | grep mongo
 
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
launchctl remove homebrew.mxcl.mongodb

pkill -f mongod

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Install HomeBrew first

brew update
brew tap caskroom/cask
brew install brew-cask

If you get the error "already installed", follow the instructions to unlink it, then install again: