ConTejas Code Podcast Por Tejas Kumar arte de portada

ConTejas Code

ConTejas Code

De: Tejas Kumar
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ConTejas Code is a podcast in the web engineering space that has deep dives on various topics between frontend engineering with React, TypeScript, Next.js, and backend engineering with Kafka, Postgres, and more. The series is a mix of long-form content and guest episodes with industry leaders in the web engineering space.


From the podcast, listeners will take away actionable best practices that you can integrate into your workflows as well as valuable insights from prominent people in the industry.

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

Tejas Kumar
Episodios
  • Passkeys: A Deep Dive into Authentication
    Jan 12 2026

    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.

    Más Menos
    1 h y 37 m
  • How to Engineer Your Way to Quality Health
    Jan 5 2026

    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


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

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    1 h y 53 m
  • Pratim Bhosale: How to get into AI from Backend Engineering
    Jul 7 2025

    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

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

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    1 h y 32 m
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