Privacy & browser storage

This guide is published by Arthur Bernier Jr (Big Poppa Code). This page explains what this site stores, when outside services connect, and how to clear your choices. Updated November 8, 2026.

Reading and searching

The guide does not set its own cookies or include an analytics tracker. Search runs in your browser against the site's downloaded search index. Opening a search-results URL can include your query in that URL and browser history.

Your save point

Pressing Save my place stores one lesson ID, a save timestamp and a format version in localStorage under dtc:save-point:v1. It is an explicit bookmark, not a completion record or account, and this feature does not upload it. It stays on this browser profile and site address until you replace it, clear it, or browser data is removed. Shared profiles share the bookmark; other devices do not. Private browsing may discard it when the private session ends.

Learn how the save crystal works.

Saved lesson preferences

When you reveal a lesson solution, this site remembers that choice in localStorage on this browser. It stores a simple revealed flag for that lesson, not your code, terminal history or answers. The preference remains until you hide the solution, clear it below, or clear this site's browser data. It is not sent to the server by the guide.

Clear saved lesson preferences

YouTube videos are your choice

Video preview pictures are stored on this site. YouTube is not contacted just to show a preview. Choosing “Load YouTube player” connects that player to Google/YouTube, which receives connection information such as your IP address and may use cookies or browser storage. We use YouTube's privacy-enhanced player; that does not mean Google receives no data. The player may show advertising.

Your choice applies only to that player on this page visit. “Disconnect player” removes it and restores the preview. It cannot undo information already transmitted or delete storage owned by YouTube. Manage that data through your browser's site-data settings and Google's privacy controls. The “Watch on YouTube” link takes you to YouTube, where its policies apply.

Google Privacy Policy · YouTube privacy-enhanced embedding

Practice examples

Shell commands use temporary simulated files. JavaScript examples run in isolated browser sandboxes with network access blocked. Practice state resets when you reload; rerunning an example resets that example. Do not enter passwords, seed phrases, private keys or other secrets into practice examples.

Server logs and outside links

Loading pages necessarily sends connection information to the site's host. The application production log records time, request method and path, response status and duration, and a shortened browser identifier. It omits URL query strings. Hosting infrastructure may maintain additional connection or security logs, including IP addresses; retention depends on the hosting configuration. Links to newsletters, social media and other sites are governed by those services when you visit them.

Optional support and personal services

The thank-you link opens Cash App. Code and portfolio review requests take place through GitHub issues, where you choose what project information to share. This site does not collect payment details, upload your repository, or submit an inquiry for you. Cash App, GitHub and the invoice provider handle information under their own policies when you use those services.

Questions and control

For questions about this guide, contact Big Poppa Code through the creator's website. You can read lessons without loading a video and clear this site's stored preferences at any time. Browser settings also let you block storage or clear all data for this site.