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Writing from across Lexicon — the latest first.

19 notes across 16 categories

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Bug Bounty

2
Note

Only Bug Bounty Checklist You'll Ever Need!!! V2

Global Manual Bug Bounty Checklist Purpose: A target-agnostic, manual-first checklist for authorized web, API, SaaS, identity, business-logic, integration, a…

Scorpion X Dev 9/26/2026· 8 views
Note

Only Bug Bounty Checklist You'll Ever Need!!!

Global Manual Bug Bounty Checklist Purpose: A target-agnostic, manual-first checklist for authorized web, API, SaaS, identity, business-logic, integration, a…

Scorpion X Dev 9/19/2026· 14 views

Databases

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    Database indexing basics

    An index is a sorted lookup structure that lets the database find rows without scanning the whole table. It is the single biggest lever for query speed, and …

    scorpionxdev 8/5/2026· 1 views

DevOps

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    How environment variables work

    Environment variables are named values that live in a process and get inherited by the processes it spawns. They are the standard way to pass configuration a…

    scorpionxdev 7/27/2026· 3 views

Discussions

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    TCP Handshake

    Question How does it work --- Discussion scorpionxdev (OP) · Aug 8, 2026 asdasdhelfuhfeakdhine scorpionxdev (OP) · Aug 8, 2026 asfweoi;fjuwefaiohwkihaidhaha …

    scorpionxdev 8/8/2026· 1 views

Git

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    Git commands I use every day

    A short reference of the Git commands I actually reach for daily. Not exhaustive, just the ones that earn their keep. Checking state bash git status what cha…

    scorpionxdev 8/5/2026· 2 views

JavaScript

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    JavaScript async and await

    async / await is syntax sugar over Promises that lets asynchronous code read top to bottom like normal code. Under the hood it is still Promises. The basics …

    scorpionxdev 8/14/2026· 1 views

Kotlin

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    Kotlin coroutines overview

    Coroutines are Kotlin's answer to asynchronous programming. They let you write concurrent code that reads sequentially, without blocking threads. Suspend fun…

    scorpionxdev 8/5/2026· 1 views

Linux

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    Useful Linux filesystem commands

    A compact cheat sheet of filesystem commands I keep coming back to on the terminal. Moving around bash pwd where am I ls -lah long list, human sizes, include…

    scorpionxdev 8/6/2026· 2 views

Notes

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    Interview prep

    FOXCONN SECURITY ENGINEER — MASTER INTERVIEW NOTES 1. First understand what job I am interviewing for I should not mentally classify this position as “SOC An…

    Ppallavi 9/11/2026· 2 views

Performance

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    How caching improves application performance

    Caching is storing the result of expensive work so you can reuse it instead of redoing it. Done well it is the highest-leverage performance tool you have. Do…

    scorpionxdev 8/5/2026· 1 views

React

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    React component design principles

    A handful of principles that keep React components easy to change. None of them are rules, but ignoring all of them tends to produce components that are pain…

    scorpionxdev 5/5/2026· 0 views

Reference

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    Markdown formatting reference

    A quick reference for GitHub-Flavored Markdown. The rendered output is on the left in your head; the source is below. Headings markdown H1 H2 H3 Emphasis mar…

    scorpionxdev 8/5/2026· 1 views

Software Craft

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    Clean code naming practices

    Naming is the cheapest documentation you will ever write and the first thing the next reader sees. A good name removes the need for a comment. Say what it is…

    scorpionxdev 8/15/2026· 5 views
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    Debugging checklist

    When something breaks and I have no idea why, I run through this list before touching any code. It turns panic into a process. 1. Reproduce it reliably A bug…

    scorpionxdev 8/15/2026· 2 views

SQL

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    SQL joins explained

    A join combines rows from two tables based on a related column. The join type decides what happens to rows that have no match. Sample tables Say we have user…

    scorpionxdev 8/8/2026· 1 views

Swift

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    SwiftUI state management

    SwiftUI rebuilds views from state. The trick is choosing the right property wrapper so ownership and updates flow the way you expect. The core property wrapp…

    scorpionxdev 6/6/2026· 0 views

Web

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    Understanding HTTP status codes

    Status codes are the server telling you what happened in one number. Learn the shape of each class and you can debug most APIs without reading a manual. The …

    scorpionxdev 8/15/2026· 3 views
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    API pagination patterns

    When a collection is too big to return at once, you paginate. There are two main patterns and choosing wrong causes real pain at scale. Offset pagination The…

    scorpionxdev 8/7/2026· 4 views