vinhnx

# install DSPy: pip install dspy
import dspy

# Ollam is now compatible with OpenAI APIs
# 
# To get this to work you must include `model_type='chat'` in the `dspy.OpenAI` call. 
# If you do not include this you will get an error. 
# 
# I have also found that `stop='\n\n'` is required to get the model to stop generating text after the ansewr is complete. 
# At least with mistral.

vinhnx

Anti-hype LLM reading list

Goals: Add links that are reasonable and good explanations of how stuff works. No hype and no vendor content if possible. Practical first-hand accounts of models in prod eagerly sought.

Foundational Concepts

Pre-Transformer Models

vinhnx

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

vinhnx

class MyCell: UITableViewCell {
    let titleLabel = UILabel()
    let subtitleLabel = UILabel()
    
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
    }
    
    required init?(coder: NSCoder) { nil }
    

vinhnx

import Foundation

public protocol NetworkLoggable {
  func log<T: CustomStringConvertible>(
    label: String,
    value: T?,
    level: NetworkLogger,
    function: StaticString,
    line: UInt,
    file: String

vinhnx

Architecture

• Doordash mobile architecture
• Evernote rewrite mobile app
• Scaling up an iOS app using modules

Offline Sync and Cache

• Dropbox photo offline sync
• Airbnb message sync
• Netflix download
• Trello offline works
• Expedia API cache

vinhnx

//Orginal code from: https://gist.github.com/mecid/f8859ea4bdbd02cf5d440d58e936faec
//I just made some modification in appearnce, show monthly navigator and weekdays.

import SwiftUI

struct ContentView: View {
    
    @Environment(\.calendar) var calendar
    private var year: DateInterval {
        calendar.dateInterval(of: .month, for: Date())!

vinhnx

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

vinhnx

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

vinhnx

/// `ObjectBinding` used as a way to create a `Binding` from a `BindableObject`. In this case the ViewModel
/// complies with `BindableObject` which is then translated into a `Binding` which is what `Toggle` is expecting
/// NOTE: Since it's a `DynamicViewProperty`, after its value is changed, the body will be updated.
class ViewModel: BindableObject {

   let didChange = PassthroughSubject<ViewModel, Never>()

   var isEnabled = false {
       didSet {
           didChange.send(self)