
Lasse Jacobsen developed and maintained the efdevcon/monorepo, delivering a robust suite of features for event management, authentication, and user experience across web and mobile. He architected scalable workflows for ticketing, calendar integration, and perks systems, leveraging technologies like React, TypeScript, and Supabase. Lasse implemented authentication flows with OAuth and Zupass gating, enhanced UI/UX with responsive design, and ensured data reliability through backend integrations with Notion and Pretix. His work included rigorous bug fixing, state management with Zustand, and continuous deployment improvements. The codebase reflects deep attention to maintainability, modularity, and cross-team collaboration, supporting rapid iteration and reliable releases.

2025-11 Monthly Summary for efdevcon/monorepo: Focused on delivering high-value features, stabilizing core flows, and improving data reliability. Key outputs included Venue Map UX Enhancements, Devconnect Perks System Enhancements, Authentication Flow Enhancements, and UI/UX Modernization across Devconnect. Two major bug fixes addressed coupon claiming alignment with Pretix and robust event data fetching.
2025-11 Monthly Summary for efdevcon/monorepo: Focused on delivering high-value features, stabilizing core flows, and improving data reliability. Key outputs included Venue Map UX Enhancements, Devconnect Perks System Enhancements, Authentication Flow Enhancements, and UI/UX Modernization across Devconnect. Two major bug fixes addressed coupon claiming alignment with Pretix and robust event data fetching.
October 2025 Highlights for efdevcon/monorepo: Delivered user-focused features, hardened release processes, and foundational architectural improvements that enable scalable growth and secure access. Key features delivered included a Favorites system with filtering, UI/UX enhancements for authentication and navigation, and gating-enabled event flows. Major bug fixes and stability improvements reduced risk in production builds and typings, and introduced robust state management for routing. The month also advanced platform reliability with Zupass gating, wallet integration readiness, and ongoing translations/CMS groundwork for destino. Collectively these efforts improve user retention, reduce MTTR, and position the product for faster iteration and secure access control.
October 2025 Highlights for efdevcon/monorepo: Delivered user-focused features, hardened release processes, and foundational architectural improvements that enable scalable growth and secure access. Key features delivered included a Favorites system with filtering, UI/UX enhancements for authentication and navigation, and gating-enabled event flows. Major bug fixes and stability improvements reduced risk in production builds and typings, and introduced robust state management for routing. The month also advanced platform reliability with Zupass gating, wallet integration readiness, and ongoing translations/CMS groundwork for destino. Collectively these efforts improve user retention, reduce MTTR, and position the product for faster iteration and secure access control.
September 2025 — efdevcon/monorepo: Delivered a UI/architecture overhaul, stabilized build/versioning, gate-ready event flows, calendar and Ethereum Day integration, and export progress features. Achievements include a desktop-friendly app structure with robust mobile/dialog fixes, corrected updated_at timestamp, and improved gating UX (Zupass) with direct linking and custom event URLs. The month emphasized reliability, performance, and business value by aligning versions, hardening type safety, and enabling scalable event gating and data export.
September 2025 — efdevcon/monorepo: Delivered a UI/architecture overhaul, stabilized build/versioning, gate-ready event flows, calendar and Ethereum Day integration, and export progress features. Achievements include a desktop-friendly app structure with robust mobile/dialog fixes, corrected updated_at timestamp, and improved gating UX (Zupass) with direct linking and custom event URLs. The month emphasized reliability, performance, and business value by aligning versions, hardening type safety, and enabling scalable event gating and data export.
August 2025 highlights: Delivered a strategic frontend upgrade, calendar capabilities, backend consolidation, and quality improvements that increase user engagement, reliability, and scalability. Key outcomes include a React 19 migration for Archive, calendar integration in the PWA, API/build stability fixes, Supabase backend consolidation with Pretix integration scaffolding, and enhanced admin/UI and events workflows enabling faster feature delivery and improved operational efficiency.
August 2025 highlights: Delivered a strategic frontend upgrade, calendar capabilities, backend consolidation, and quality improvements that increase user engagement, reliability, and scalability. Key outcomes include a React 19 migration for Archive, calendar integration in the PWA, API/build stability fixes, Supabase backend consolidation with Pretix integration scaffolding, and enhanced admin/UI and events workflows enabling faster feature delivery and improved operational efficiency.
July 2025 — Delivered key features, fixed critical bugs, and strengthened deployment pipelines across efdevcon/monorepo, driving admin efficiency, data integrity, and faster, more reliable releases. Key features delivered include an Admin Dashboard redesign with schema fixes; Zupass integration and Next.js bundle optimization; Notion column realignment and sync; Perks framework launch with UI/CTA animations; Coupons feature. Supporting capabilities shipped include Volunteer form, translations, product IDs, ATProto delete event, CMS perks, and extensive UI/UX polish. Major stability work included Netlify deployment readiness, build/link stability fixes, and Next.js compatibility efforts, improving release confidence and previews. Overall impact: improved admin workflows, stronger data quality, faster user experiences, and a robust deployment pipeline enabling faster time-to-market. Technologies demonstrated: Next.js, PNPM, Turbopack experiments, Zupass verification, Notion integration, Bsky OAuth, React 19, Netlify deployments, and broad config/refactoring and QA/testing expertise.
July 2025 — Delivered key features, fixed critical bugs, and strengthened deployment pipelines across efdevcon/monorepo, driving admin efficiency, data integrity, and faster, more reliable releases. Key features delivered include an Admin Dashboard redesign with schema fixes; Zupass integration and Next.js bundle optimization; Notion column realignment and sync; Perks framework launch with UI/CTA animations; Coupons feature. Supporting capabilities shipped include Volunteer form, translations, product IDs, ATProto delete event, CMS perks, and extensive UI/UX polish. Major stability work included Netlify deployment readiness, build/link stability fixes, and Next.js compatibility efforts, improving release confidence and previews. Overall impact: improved admin workflows, stronger data quality, faster user experiences, and a robust deployment pipeline enabling faster time-to-market. Technologies demonstrated: Next.js, PNPM, Turbopack experiments, Zupass verification, Notion integration, Bsky OAuth, React 19, Netlify deployments, and broad config/refactoring and QA/testing expertise.
June 2025 highlights for efdevcon/monorepo: Delivered key user workflow features, improved UI/UX, and strengthened reliability and deployment readiness. Features delivered include: PDS and Invite Code workflow with a disable toggle for DevCon PDS; Save Progress in the workflow; UI/layout polish with responsive enhancements and updated hero; Calendar CMS integration with calendar UI/data fixes and translations; OAuth authentication core with testing coverage and sign-out/scope fixes. Major bugs fixed include: hiding FAQ questions, calendar ticket link behavior and Spanish translation issues, blog link fixes, color fixes, and miscellaneous end-of-sprint tweaks. Overall impact: smoother onboarding and workflows, persistent user progress, better content management and localization, more secure and reliable authentication, and a more maintainable release pipeline. Technologies/skills demonstrated: TypeScript typing enhancements, theming system refinements, data layer and Firehose integration, Netlify deployment workflows, retry/resilience patterns, and expanded testing coverage (OAuth and GitHub contributions).
June 2025 highlights for efdevcon/monorepo: Delivered key user workflow features, improved UI/UX, and strengthened reliability and deployment readiness. Features delivered include: PDS and Invite Code workflow with a disable toggle for DevCon PDS; Save Progress in the workflow; UI/layout polish with responsive enhancements and updated hero; Calendar CMS integration with calendar UI/data fixes and translations; OAuth authentication core with testing coverage and sign-out/scope fixes. Major bugs fixed include: hiding FAQ questions, calendar ticket link behavior and Spanish translation issues, blog link fixes, color fixes, and miscellaneous end-of-sprint tweaks. Overall impact: smoother onboarding and workflows, persistent user progress, better content management and localization, more secure and reliable authentication, and a more maintainable release pipeline. Technologies/skills demonstrated: TypeScript typing enhancements, theming system refinements, data layer and Firehose integration, Netlify deployment workflows, retry/resilience patterns, and expanded testing coverage (OAuth and GitHub contributions).
May 2025 focused on strengthening data integration, reliability, and developer experience in efdevcon/monorepo. Delivered core data integrations (Slurp/Notion and Salesforce) enabling streamlined data syncing and CRM access, advanced progress tracking for batch tasks, and upgraded AI generation progress with a newer model. Expanded Destino capabilities with DevConnect and event tables, previews, and mobile view improvements; migrated to a real Notion table with end-to-end event storage, endpoints, and DID support. Addressed quality and stability with targeted build, translation, and update-check fixes, and laid the groundwork for testing, calendar improvements, and ticketing enhancements. These efforts collectively improve data reliability, time-to-value for customers, and scalability for future features.
May 2025 focused on strengthening data integration, reliability, and developer experience in efdevcon/monorepo. Delivered core data integrations (Slurp/Notion and Salesforce) enabling streamlined data syncing and CRM access, advanced progress tracking for batch tasks, and upgraded AI generation progress with a newer model. Expanded Destino capabilities with DevConnect and event tables, previews, and mobile view improvements; migrated to a real Notion table with end-to-end event storage, endpoints, and DID support. Addressed quality and stability with targeted build, translation, and update-check fixes, and laid the groundwork for testing, calendar improvements, and ticketing enhancements. These efforts collectively improve data reliability, time-to-value for customers, and scalability for future features.
April 2025 monthly summary for efdevcon/monorepo focused on delivering core capabilities for Destino, stabilizing the UI, and advancing CMS integration and localization. The month combined feature delivery, reliability improvements, and UX polish to drive business value and faster time-to-value for end users and partners.
April 2025 monthly summary for efdevcon/monorepo focused on delivering core capabilities for Destino, stabilizing the UI, and advancing CMS integration and localization. The month combined feature delivery, reliability improvements, and UX polish to drive business value and faster time-to-value for end users and partners.
March 2025 – efdevcon/monorepo: Delivered a blend of polished user experience, calendar readiness, and authentication enhancements, underpinned by stability and internationalization improvements. Front-end polish and UX enhancements improved readability and readiness messaging; calendar component and readiness checkpoints enable smoother pre-preview workflows and state restoration; DevConnect login integration adds another authentication option for users. In parallel, translations/i18n support and Open Graph metadata fixes improved international reach and social sharing accuracy. Stability and quality improvements across the stack—including WebGL error boundaries, hydration fixes, build error resolution, and targeted operational fixes—reduced incident surface and accelerated feature delivery.
March 2025 – efdevcon/monorepo: Delivered a blend of polished user experience, calendar readiness, and authentication enhancements, underpinned by stability and internationalization improvements. Front-end polish and UX enhancements improved readability and readiness messaging; calendar component and readiness checkpoints enable smoother pre-preview workflows and state restoration; DevConnect login integration adds another authentication option for users. In parallel, translations/i18n support and Open Graph metadata fixes improved international reach and social sharing accuracy. Stability and quality improvements across the stack—including WebGL error boundaries, hydration fixes, build error resolution, and targeted operational fixes—reduced incident surface and accelerated feature delivery.
February 2025 monthly summary for efdevcon/monorepo focused on delivering AI-enabled UX, immersive 3D visuals, dynamic storytelling, and cross-event branding, while modernizing the codebase for maintainability. The work contributed to stronger user engagement, richer event experiences, and faster development cycles.
February 2025 monthly summary for efdevcon/monorepo focused on delivering AI-enabled UX, immersive 3D visuals, dynamic storytelling, and cross-event branding, while modernizing the codebase for maintainability. The work contributed to stronger user engagement, richer event experiences, and faster development cycles.
November 2024 monthly summary for efdevcon/monorepo focused on delivering core UX stability, browser compatibility, and developer workflow enhancements. The month emphasized refining user interactions, stabilizing core components, and enabling productive integration points for downstream teams.
November 2024 monthly summary for efdevcon/monorepo focused on delivering core UX stability, browser compatibility, and developer workflow enhancements. The month emphasized refining user interactions, stabilizing core components, and enabling productive integration points for downstream teams.
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