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Leanpub

Leanpub — “Why is my balance wrong?”Because you used a float.This book shows how to do it right:…

Leanpub is “Why is my balance wrong?”Because you used a float.This book shows how to do it right: double-entry, integers, SQLite, and the code that implements it.. It is ranked #3513 on the Dev Radar, in Web frameworks, first seen 31 days ago and shared in 9 posts (10.1k views).

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What Leanpub says about itself

A practical book on frontend system design covering data modeling, pagination, caching, real-time updates, performance optimization, and API design — built around the CCDAO framework with real case studies like typeahead search and feed lists.

Frontend System Design Essentials [Leanpub PDF/iPad/Kindle] Leanpub Header Leanpub Navigation Skip to main content Go to Leanpub.com Leanpub Store Authors Readers Topics Services AI tools GhostAI AudiobookAI TranslateAI CourseAI ImportAI IndexAI AccessibilityAI Premium services GhostAI Accelerator Publish on Amazon GlobalAuthor PodcastBook NewsletterBook ConferenceBook Ghostwriting The Founder Book The Expert Book The Authority Book The Executive Book Marketing Forums Filter All Books Bundles Courses Tracks Frontend System Design Essentials A practical guide to designing scalable, reliable, and maintainable frontend systems. This book is…

What people said about Leanpub on X

“Why is my balance wrong?”Because you used a float.This book shows how to do it right: double-entry, integers, SQLite, and the code that implements it. https://leanpub.com/literateledger

— @vvmaciel, 4 days ago · 0 likes · see the post

Frontend System Design Essentials by Juntao Qiu is on sale on Leanpub! Its suggested price is $49.99; get it for $32.40 with this coupon: https://leanpub.com/frontend-system-design-essentials/c/LeanpubWeeklySale20261020 @juntaoqiu #computer_programming #react #web_development

— @leanpub, 5 days ago · 0 likes · see the post

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Leanpub in numbers

FAQ

What is Leanpub?

“Why is my balance wrong?”Because you used a float.This book shows how to do it right: double-entry, integers, SQLite, and the code that implements it. It was first shared on X 31 days ago and is ranked #3513 on the Dev Radar.

Is Leanpub free?

It is a paid product.

Who shared Leanpub?

5 accounts on X, including @vvmaciel, @leanpub, in 9 posts totalling 10.1k views.

Every post is read and classified by AGK Intelligence: what it is, which market it belongs to, and whether the link is a real tool. 31.2k posts from 5k X accounts over the last 21 days, 8.8k tools, 12 markets. New posts are collected several times an hour and the full ranking is recomputed every hour — last update 2026-10-30 21:12 UTC. Full method.