Links

- Codecrafters (sponsor): https://tej.as/codecrafters

- Clerk: https://clerk.com

- Auth0: https://auth0.com

- Arctic (OAuth Library): https://arctic.js.org

- Lucia (Session Library): https://lucia-auth.com

Why do we still use passwords in 2026? In this episode of ConTejas Code, we tear down the complex world of digital identity. From the horror story of getting hacked at a hookah bar to the mathematical elegance of public-key cryptography, we cover how the internet knows who you actually are.

Let's break down the history of web authentication, explain why "logging in" is so much harder than it looks, and demystify the new standard taking over the web: Passkeys (WebAuthn). Whether you are a developer looking for an implementation playbook or just curious why your banking app requires a fingerprint, this deep dive explains the difference between Identity, Identifiers, and Credentials—and why you should stop rolling your own auth immediately.

Chapters

00:00:00 - Welcome to ConTejas Code

00:01:06 - Sponsor: CodeCrafters

00:01:42 - Why Authentication Matters (High Stakes vs. Low Stakes)

00:07:30 - Storytime: Getting Hacked at a Shisha Bar

00:19:48 - The Vocabulary: Identity, Identifiers, and Credentials

00:27:45 - The Three Factors (Something You Know, Have, Are)

00:34:28 - Real World Analogies: House Keys, Speak-easies, and Hotel Cards

00:41:10 - A History of Web Auth: From Basic Auth to the "Social Login" Mess

00:49:15 - Authentication vs. Authorization vs. Accounting

00:57:00 - The Problem with Passwords & MFA Fatigue

01:00:40 - How Passkeys Work: Public Key Cryptography Explained

01:07:00 - Under the Hood: WebAuthn, FIDO2, and The "Ceremonies"

01:13:40 - Synced vs. Device-Bound Passkeys

01:16:30 - The Playbook: How to Design Auth for SaaS, Mobile, and B2B

01:21:00 - The Golden Rule: Don't Roll Your Own Crypto

01:23:00 - Libraries & Tools You Should Use (Clerk, Auth0, Arctic)

01:28:40 - The Minimum Viable Security Checklist

01:32:30 - The Future of Passwordless Identity

Hosted on Acast. See acast.com/privacy for more information.

Links

- Codecrafters: https://tej.as/codecrafters

- Why We Sleep: https://www.amazon.de/-/en/Why-We-Sleep-Unlocking-Dreams/dp/1501144316

- Matthew Walker's Podcast: https://open.spotify.com/show/1aIVAabjRjnmiouX0zCzF3

- Sleep latency paper: https://pubmed.ncbi.nlm.nih.gov/33865376/#:~:text=Oral%20magnesium%20supplementation%20for%20insomnia,insomnia%20symptoms%20in%20older%20adults

- Glycine for sleep: https://glowable.com.au/blogs/news/glycine-the-calming-nutrient-for-soothing-anxiety?srsltid=AfmBOor_YWMUUsqdS9AJjfSJLQb1F0CSEKrbw-0AhjCVkXCcHdjPGtWq#:~:text=of%20Pharmacological%20Sciences%20found%20that,often%20closely%20linked%20to%20anxiety

- Dr. Andy Galpin's podcast: https://performpodcast.com/

- Detachment paper: https://pubmed.ncbi.nlm.nih.gov/19592515/#:~:text=Results%3A%20%20Higher%20PEAT%20scores,of%20depression%20and%20negative%20affect

- Quantified Scientist: https://www.youtube.com/c/TheQuantifiedScientist

In this episode, we learn how to engineer better health outcomes for ourselves to live fitter and healthier than ever before drawing on the latest research.

Chapters

00:00:00 Intro

00:05:24 Episode Outline

00:12:08 Sleep Architecture: Deep and REM

00:24:17 How to Sleep Well

00:34:31 My Routine with Sleep

00:39:25 Using Temperature to Sleep Well

00:41:55 Eating before Bed

00:45:14 Getting more Deep Sleep and REM Sleep

00:52:49 How to Eat Well

00:56:05 How to Lose Fat

01:02:35 How to Gain Muscle

01:07:47 Vices: Alcohol, Nicotine, etc.

01:10:28 Loneliness and Social Connection

01:18:34 How to Develop Quality Social Connections

01:25:54 Maximizing Productivity and Work/Life Balance

01:33:36 Psychological Detachment

01:36:33 Dealing with Getting Sick

01:42:08 How to Avoid Jetlag and Travel Well

01:46:14 Heart Rate Variability: Managing Stress and Recovery

01:50:53 Conclusion

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Links

- CodeCrafters (partner): https://tej.as/CodeCrafters

- Pratim on X: https://x.com/bhosalepratim

- Tejas on X: https://x.com/tejaskumar_

Summary

In this conversation, we explore the journey from backend development to becoming a Google Developer Expert in Golang. We discuss the significance of microservices architecture, the importance of search technologies, and the development of Cargo Chat, a tool for searching codebases.

Pratim shares insights on building effective search pipelines, Matryoshka embedding models, and the integration of hypothetical documents in search processes. The conversation concludes with a discussion on a mental health journaling app that connects personal reflections with religious texts for encouragement.

Chapters

00:00 Pratim Bhosale

02:19 Introduction

05:16 The Shift to Backend Development and Golang

08:16 Becoming a Google Developer Expert

11:20 Understanding Microservices Architecture

14:19 Building Innovative Tools: Cargo Chat

17:12 Search Technologies and Their Applications

20:15 The Search Pipeline and Embedding Models

29:49 Building a Vector Database

33:13 Local First Movement and Security

34:14 Understanding Hyde: Hypothetical Document Embeddings

36:48 Matryoshka Embedding Models

41:59 The Search Problem in AI

43:57 Developing a Mental Health App

48:02 Comparing Approaches to Vector Search

52:56 Developer Experience and Product Growth

01:02:52 Understanding Developer Experience Levers

01:04:32 Making API Products Click

01:07:40 The Role of Developer Advocacy

01:11:06 Navigating Career Paths in Tech

01:13:58 Finding Your Niche in Developer Relations

01:20:18 Work-Life Balance and Avoiding Burnout

01:24:01 The Importance of Mentorship

01:27:07 Emerging Technologies and Trends

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