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How to Build a Second Brain

Alex Mercer · 45:22

youtube.com

How to Build a Second Brain — Full Course

Ready to save · Video · 45:22

Productivity

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Only Animus saves what's in it.

Animus transcribes videos, OCRs carousels, and parses threads into structured, searchable knowledge.

Animus

Audit and Harden API Routes That Touch User Data

A concise developer runbook for auditing APIs that touch user data, payments, or PII.

@marcushaw·Jun 16, 2026·6 min read
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1
Create an audit prompt and run it in Cursor

Open Cursor in your workspace and run the prompt to search for key security checks.

Save the result to API_AUDIT.md in the repository root.

2
Review the audit and identify missing controls

For each route, check: OK or MISSING.

Authentication, Authorization, Rate limiting, Input validation.

3
Add authentication where missing

Identify your project's auth middleware (JWT, session).

For each route missing auth, add the appropriate middleware.

4
Add authorization/access checks

Implement checks so users can only access their own data.

Use service-layer functions to enforce resource ownership.

5
Add schema validation for bodies and query params

Choose a schema validator (Zod) and add schemas for request bodies.

Validate inputs at the controller level before business logic.

AI Processing

Videos become chapters. Threads become structured docs. Every save is fully extracted and indexed — not just bookmarked.

Audit and Harden API Routes That Touch User Data

A quick pre-shipping checklist to find and fix API routes.

@marcushaw·2h ago

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Use conditional blocks to make instructions apply only when relevant.

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Cancel flows, personalized save offers, and win-back campaigns.

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Three Principles for an Insanely Great Product Demo

Craft SaaS demos that hook prospects and drive conversions.

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Earning $19.7K/month with Next.js, Supabase, and Railway.

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Principled Prompting for Software Workflows

Concise prompt templates for iterating specs and planning.

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Transformer Tutorial Overview

Tutorial slides and recordings with reuse permission.

@giffmann·4d ago

Your Real Library

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Advanced Setup for Claude Code· 47 conversations
History

claude code advanced setup

> 5 thoughts

Quick advanced setup checklist — what to get right first

  • Project-level guardrail: create a CLAUDE.md that front-loads purpose, allowed tools, secrets policy, and verification tests.

  • Prompt hygiene: assume zero context, front-load the most important instructions, and give clear verification criteria.

  • Environment config: save per-task configs (model, temperature, max_tokens, system prompt) and version them. Use low temperature (0.1–0.2) for deterministic coding tasks.

  • Skills & separation: split logic into reusable Skills/commands and separate projects to avoid context bleed. Version Skills in source control.

  • Testing & staging: implement staged testing (dev → smoke tests → integration) and verification tests for every Skill before granting broader permissions.

  • Permissions: adopt explicit allow / ask / deny rules for filesystem, browser control, and credentials. Start conservative.

View

Recommended file: CLAUDE.md (minimal advanced template)

  • Purpose: one-liner describing project goal and acceptable outputs.

  • Scope & constraints: what the agent may and may not do.

  • Allowed tools: list CLI tools, browser sessions, APIs the project can use.

  • Secrets policy: where secrets live, how they’re accessed, and prohibition on printing.

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How Animus compares

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FeatureBookmarksPocketReadwiseAnimus
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Reads the contentPartial
Instagram / TikTok carousels
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Natural language search
Auto-organization
Mobile appsSoon
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Frequently asked questions

Everything you need to know about Animus.

How is Animus different from Pocket?

Pocket saves a URL. Animus reads what’s behind it — every slide in a carousel, every post in a thread, every minute of a video. You search what the content says, not what you titled it.

How is Animus different from Readwise?

Readwise is built around highlights from books and newsletters. It doesn’t process social media natively. Animus is built specifically for the content people actually consume today — threads, carousels, videos.

What platforms does Animus support?

Twitter/X threads, Instagram carousels, YouTube videos, TikToks, Reddit posts, LinkedIn articles, blog posts, PDFs, and podcasts. They all go into one searchable library.

How does the AI search work?

Ask a question in plain English like “What were the three pricing strategies from that video I saved?” Animus searches across all your saved content — not just titles, but the actual content inside — and gives you an answer with citations back to the source.

Is my data private?

Your saved content is only accessible to you. We don’t sell your data. We don’t train on your content. Your library is yours.

Do I need the Chrome extension?

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