In revision.

A personal study book - private revision

Fundamentals,
crisp & deep.

Every topic has two layers. Read crisp the night before the interview, study deep on the weekend. 10 sections, 100 topics, all in one book.

  1. 01

    Computer Networks

    Wires, packets, protocols, and everything between the browser and the server.

  2. 02

    Databases & Postgres

    Relational guts, MVCC, indexes, isolation, and how Postgres actually works.

  3. 03

    Language Internals

    How JavaScript and Python actually run under the hood.

  4. 04

    Resume Tech Crisp Cards

    Every line on your resume, explained how you should explain it.

  5. 05

    Internship Narratives

    Binocs, ViewR, IIT Mandi - narrated as a senior engineer.

  6. 06

    System Design Patterns

    The patterns that came up at Spur and the ones that will come up next.

  7. 07

    Security & Crypto

    HMAC, VAPID, JWT, OAuth, TLS - so the VAPID inversion never happens again.

  8. 08

    Distributed Systems

    CAP, consensus, replication, sharding - senior engineer table stakes.

  9. 10

    Kubernetes

    Pods to operators, CNI to RBAC - everything you should know after running EKS in production.

  10. 11

    Operating Systems

    Processes, threads, memory, syscalls - what every backend dev should know.