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Nicoll Guarnizo

PROFILE

Nicoll Guarnizo

Nicoll spent twelve months engineering core features and infrastructure for the badass-courses/course-builder repository, delivering 54 features and resolving 16 bugs. He built systems for event management, coupon orchestration, entitlement workflows, and dynamic UI components, using TypeScript, React, and Next.js. His work included integrating Stripe for payments, implementing robust admin interfaces, and refactoring backend logic for reliability and maintainability. Nicoll focused on scalable database management with Drizzle ORM and MySQL, enhancing both frontend and backend flows. The depth of his contributions is reflected in end-to-end feature delivery, thoughtful error handling, and iterative improvements that strengthened product stability and user experience.

Overall Statistics

Feature vs Bugs

77%Features

Repository Contributions

168Total
Bugs
16
Commits
168
Features
54
Lines of code
162,748
Activity Months12

Work History

February 2026

4 Commits • 2 Features

Feb 1, 2026

February 2026 monthly summary for badass-courses/course-builder: Implemented Admin Product Management UI and routing with Admin Products navigation; introduced PostAuthor component for author data fetch and author attribution in UI and search; fixed critical admin routing issues and source paths for new products; improved content attribution and search relevance; reinforced admin workflow reliability.

January 2026

18 Commits • 6 Features

Jan 1, 2026

January 2026 performance summary for badass-courses/course-builder: Delivered high-impact features, stabilized build-time operations, and strengthened production readiness, enabling faster feature delivery and reduced risk across the course builder ecosystem.

December 2025

19 Commits • 3 Features

Dec 1, 2025

December 2025 monthly summary for badass-courses/course-builder: Focused on delivering a robust multi-workshop experience with entitlement gating, refining tutorials, improving product transfer workflows, and increasing reliability of video processing. Key outcomes include enabling and validating entitlements across multi-workshop experiences, presenting accurate UI and navigation, enhancing access checks, and consolidating transfer logic across resources; improvements to tutorials management UI and accessibility; and reliability improvements for video processing to reduce stalled content. These efforts contributed to improved user experience, stronger access control, and higher operational resilience, supporting higher user engagement and revenue protection.

November 2025

43 Commits • 18 Features

Nov 1, 2025

November 2025: Delivered a major upgrade to the course-builder pricing and entitlements platform, strengthening purchase flow reliability, entitlement/coupon orchestration, and post-purchase promotions. Implemented stackable discounts, dynamic entitlement type fetching, and transactional coupon workflows, with MySQL schema updates and extensive tests. Refactored core pricing logic, added source-level logic for promotions, and enabled admin-driven coupon generation and entitlement management. Result: higher conversion, greater pricing flexibility, and more robust revenue protection.

October 2025

7 Commits • 2 Features

Oct 1, 2025

October 2025 monthly summary for badass-courses/course-builder: Delivered key features to improve course discoverability and financial reliability, while enhancing refund workflows and ensuring idempotent post-purchase processing. This work focused on business value: faster access to AI SDK v5 Crash Course, more reliable checkout and coupon handling, clearer refund/invoice details, and stronger resilience in post-purchase workflows.

September 2025

19 Commits • 5 Features

Sep 1, 2025

September 2025 monthly summary: Delivered end-to-end event capabilities and reinforced the foundation for monetized offerings in badass-courses/course-builder. Key work included shipping the Event Management System with backend creation/management and admin UI improvements, integrating Stripe payments for event transactions along with pricing utilities, launching a Tag and Content Synchronization system to improve content relevance and consistency, and adding Inngest workflows for cohort transfers and entitlement processing. In addition to feature work, the team addressed reliability and performance through a Drizzle MySQL query fix, dependency/lockfile hygiene, and logging enhancements, reducing risk and improving maintainability. Overall, this work enables faster time-to-market for event-based offerings, streamlined admin workflows, reliable payments, and more consistent data across services.

August 2025

2 Commits • 1 Features

Aug 1, 2025

August 2025 monthly summary for badass-courses/course-builder: Delivered a robust Coupon Management System with Stripe integration enabling dynamic percentage discounts, unified coupon lifecycle, and an enhanced configuration form. Refactored coupon creation logic to support coupons of any value and added UI/documentation enhancements to facilitate adoption. This work enables flexible promotions, improves governance over discounts, and reduces manual configuration errors. Technologies demonstrated include Stripe integration, backend refactor, and frontend form improvements. Key commits include e6b5876e9590e97f7199edd17e388c6f2bf3a2cb and 27711945a251d9ae011a6163c960f34c50f1c9e9.

July 2025

28 Commits • 5 Features

Jul 1, 2025

Summary for 2025-07 focusing on badass-courses/course-builder: Delivered end-to-end enhancements to the entitlement lifecycle, with a strong emphasis on cohort entitlements, refunds, and transfers. Implemented Cohort Entitlement Creation & Sync Improvements, Refund Entitlements & Transfer Enhancements, and AI-Hero related transfer/refund workflows, along with stabilization fixes to entitlement sync. Major refactors aligned core transfer logic and source types, improved validation and logging, and introduced adapter-friendly refund handling. Results include higher data integrity, more reliable refunds and transfers, and a scalable entitlement lifecycle that supports business growth across courses.

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for badass-courses/course-builder: Delivered a dynamic homepage promotional banner feature and validated its gating logic with coupon/product data; no major bugs reported; project progress aligns with marketing-driven product goals.

May 2025

4 Commits • 2 Features

May 1, 2025

May 2025 monthly summary for badass-courses/course-builder: Key UI/UX improvements delivered to enhance shareability and onboarding. Implemented OG image improvements with font loading fixes, absolute URLs, and improved response structure, and migrated OG hosting to a static Cloudinary URL for consistent previews across platforms. Also introduced mascot visuals in the newsletter signup flow—animated focus on the email input and a mascot on the confirmation page—to boost engagement and onboarding completion. All changes demonstrate strong UI craft, asset hosting strategy, and cross-platform reliability. This work strengthens marketing attribution, user onboarding, and developer collaboration through clear commits.

April 2025

21 Commits • 8 Features

Apr 1, 2025

April 2025 performance summary for badass-courses/course-builder: delivered foundational EW scaffold, overhauled Epic-web admin post management, enhanced middleware and post data handling, refreshed branding/metadata, and expanded EAI capabilities. Key features delivered across repositories include admin routing improvements, UI cleanup, data handling refinements, and new purchase-related components and messaging. Implemented robust sold-out handling and pricing fixes, alongside general codebase cleanup to reduce technical debt and improve maintainability.

March 2025

2 Commits • 1 Features

Mar 1, 2025

March 2025 monthly summary for badass-courses/course-builder. Delivered Slack integration for the instructor invitation workflow, enabling per-instructor Slack channel creation, automatic invitations, ephemeral welcome messages, and corrected notification routing so invites and completion alerts reach the correct user. Implemented across two commits (936b1cd74a3d4c3c6b83b2ae71654333adeff38e and 91c82d120f51f49411b245c9e822d1625f196f54).

Activity

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Quality Metrics

Correctness90.0%
Maintainability87.6%
Architecture86.6%
Performance84.8%
AI Usage24.0%

Skills & Technologies

Programming Languages

CSSHTMLJSONJavaScriptMarkdownReactSQLTypeScriptYAMLtsx

Technical Skills

API DevelopmentAPI IntegrationAPI developmentAPI integrationAWSAnthropicBackend DevelopmentCLI DevelopmentClient ComponentsCloudinaryCode OrganizationCode RefactoringComponent ArchitectureComponent ManagementComponent Refactoring

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

badass-courses/course-builder

Mar 2025 Feb 2026
12 Months active

Languages Used

JavaScriptTypeScriptCSSHTMLReacttsxSQLYAML

Technical Skills

API IntegrationBackend DevelopmentFull Stack DevelopmentNode.jsNotificationsSlack API