Developer Resources
Deep dive into tool mechanics and explore efficient workflows.
Codex and GPT Image 2: A Practical Workflow for Project Assets
Learn when to use Codex image generation, how to write reliable GPT Image 2 prompts, save outputs into your project, and avoid common asset workflow mistakes.
How to Install and Use Codex Skills
A practical guide to installing Codex skills from trusted sources, restarting Codex, invoking skills clearly, and reviewing skill quality before using them in projects.
How to Use ui-ux-pro-max with Codex for Better Frontend Design
Use ui-ux-pro-max to guide Codex frontend work with design systems, product context, layout patterns, UX constraints, and stack-specific implementation advice.
PayPal Fees in 2026: Checkout, Goods & Services, Invoices, and Fixed Fees
Understand current PayPal merchant fee presets, fixed fees by currency, international surcharges, and how to estimate real net payout before you invoice a customer.
Stripe vs PayPal Fees: Which Payment Processor Is Cheaper?
Compare Stripe and PayPal fees by transaction size, checkout method, international cards, fixed fees, and net payout instead of relying on headline percentages.
Reverse Payment Fee Calculation: How Much Should You Invoice to Receive a Net Amount?
Learn the reverse fee formula for Stripe and PayPal so freelancers, agencies, and ecommerce sellers can quote prices that preserve target net revenue.
Ecommerce Payment Processing Fees: Etsy, Stripe, PayPal, and Your Real Margin
A practical guide to comparing marketplace fees and standalone payment processors so sellers can understand what they actually keep from each order.
Etsy SEO in 2026: Titles, Tags, Attributes, and Descriptions That Match Real Buyers
A practical Etsy SEO workflow for writing clearer titles, using all 13 tags, filling attributes, and turning shop stats into listing improvements.
Etsy Product Photos That Convert: A Practical Shot List for Sellers
Learn how to build a conversion-focused Etsy photo set, from the first search thumbnail to detail shots, scale photos, packaging, and digital product previews.
Etsy Shipping Strategy: Free Shipping, Buyer-Paid Shipping, and Profit Math
Compare free shipping, buyer-paid shipping, and partial shipping while accounting for Etsy fees, Offsite Ads, packaging costs, and real margin.