Brain-up/brn
Dec 2024 – Apr 2026
4 Months active
Languages Used
CSSDockerfileHTMLHandlebarsJavaScriptKotlinNginxSQL
Technical Skills
API DevelopmentAPI developmentAPI integrationBackend DevelopmentCI/CDCSS
Alex Kanunnikov
PROFILE
Alex Kanunnikov
Worked on the Brain-up/brn repository, delivering over 70 features and 65 bug fixes in four months focused on platform modernization, reliability, and user experience. Led major upgrades including Ember.js stack migration, TypeScript adoption, and Vite integration, while refactoring frontend architecture for maintainability and performance. Enhanced API efficiency and security through backend optimizations in Java and Kotlin, improved CI/CD pipelines with Docker and GitHub Actions, and modernized testing using MSW and Playwright. Addressed audio processing reliability, responsive UI design, and accessibility, while implementing robust caching, internationalization, and gamification features to support business goals around engagement and retention.
Overall Statistics
Feature vs Bugs
52%Features
Repository Contributions
245Total
Bugs
65
Commits
245
Features
70
Lines of code
247,115
Activity Months4
Work History
April 2026
6 Commits • 2 Features
Apr 1, 2026April 2026 for Brain-up/brn delivered user-centric flow improvements and reliability enhancements that support business goals around engagement and retention. Features included Manual Solve Step Flow to let users manually initiate Solve, reducing confusion. Major fixes addressed audio playback reliability by resuming AudioContext and using the onended event for accurate timing, and ensured exercise completion state persists across navigation. Testing and quality improvements expanded UX test coverage for exercises, audio behavior, and translations. Technologies demonstrated include Web Audio API resilience, async event handling, and cross-browser compatibility in CI/testing environments.
6 Commits • 2 Features
Apr 1, 2026April 2026 for Brain-up/brn delivered user-centric flow improvements and reliability enhancements that support business goals around engagement and retention. Features included Manual Solve Step Flow to let users manually initiate Solve, reducing confusion. Major fixes addressed audio playback reliability by resuming AudioContext and using the onended event for accurate timing, and ensured exercise completion state persists across navigation. Testing and quality improvements expanded UX test coverage for exercises, audio behavior, and translations. Technologies demonstrated include Web Audio API resilience, async event handling, and cross-browser compatibility in CI/testing environments.
April 2026
March 2026
182 Commits • 54 Features
Mar 1, 2026March 2026 (Brain-up/brn) was characterized by a focused modernization, reliability, and value-delivery drive across the front-end platform. Key work included a major stack upgrade to Ember 6.8 LTS with Embroider and Vite, coupled with a sweeping template/type-checking modernization (migrating around 64 component templates to .gts and enabling Glint-based type resolution). We completed a large-scale TypeScript migration of remaining JavaScript, enforcing strict imports and improved CI linting. Testing and API mocking were modernized by replacing Mirage with MSW (MSW v2) and introducing synchronous fetch interceptors and test-waiters to stabilize test runs and reduce flakiness. Build tooling and package management were overshauled (pnpm adoption, Embroider/Vite integration, and production build stabilization). On the UI/UX side, loading skeletons, responsive layout improvements, and mobile polish improved perceived performance and accessibility. Cloud URL resolution for images/audio and per-user localStorage histories for audiometry were introduced to improve caching, data integrity, and user-specific experiences. Overall, these efforts reduced maintenance overhead, increased deployment confidence, and positioned the codebase for faster, safer delivery of new features while maintaining strict data contracts with the backend.
March 2026
182 Commits • 54 Features
Mar 1, 2026March 2026 (Brain-up/brn) was characterized by a focused modernization, reliability, and value-delivery drive across the front-end platform. Key work included a major stack upgrade to Ember 6.8 LTS with Embroider and Vite, coupled with a sweeping template/type-checking modernization (migrating around 64 component templates to .gts and enabling Glint-based type resolution). We completed a large-scale TypeScript migration of remaining JavaScript, enforcing strict imports and improved CI linting. Testing and API mocking were modernized by replacing Mirage with MSW (MSW v2) and introducing synchronous fetch interceptors and test-waiters to stabilize test runs and reduce flakiness. Build tooling and package management were overshauled (pnpm adoption, Embroider/Vite integration, and production build stabilization). On the UI/UX side, loading skeletons, responsive layout improvements, and mobile polish improved perceived performance and accessibility. Cloud URL resolution for images/audio and per-user localStorage histories for audiometry were introduced to improve caching, data integrity, and user-specific experiences. Overall, these efforts reduced maintenance overhead, increased deployment confidence, and positioned the codebase for faster, safer delivery of new features while maintaining strict data contracts with the backend.
February 2026
56 Commits • 13 Features
Feb 1, 2026February 2026: Brain-up/brn delivered a major stability, performance, and modernization uplift across the stack, with emphasis on deployment reliability, API efficiency, security, and user experience. Key platform changes included stack modernization, TLS/domain hardening, frontend UX improvements, asset optimization, and architecture refactors aligned with WarpDrive. Key deliveries: - Infrastructure upgrades and deployment hardening: Ember 4.12 and Node 22 upgrades; CI-friendly certbot and non-interactive renewal in CI; nginx gzip tuning and headers; domain cleanup (brainup.fun removed) and default_server restructuring; improved create_cert workflow and test integration. - TLS/certificate and domain reliability: fixed SSL coverage for brainup.site, automated renewal paths, and certificate naming/alignment with nginx; removed deprecated domain lineage to prevent mis-served certs. - Frontend/UI enhancements and asset optimization: mobile scroll fixes, spinner centering, landing button alignment, CSS/class-order/lint improvements, responsive tweaks for statistics page, and a ~90% size reduction by replacing large SVG wrappers with optimized PNG assets. - API performance and data access improvements: major N+1 query fixes and caching across endpoints (contributors, series/subGroup, studyHistory, tasks); added indices and batching to reduce per-request queries from hundreds to a few; cache invalidation strategies to keep data fresh. - Architecture, migration, and code quality: Phase 2 adapters/serializers replaced by two RequestManager handlers; Phase 3 model migrations to SchemaRecord; TypeScript upgraded to 5.9.3; substantial ESLint and test coverage improvements; regression-safe refactors across services. Impact: - Faster, more reliable deployments and CI workflows; lower operational risk due to TLS/domain resilience; marked improvements in API latency and scalability under load; improved mobile UX and localization readiness; stronger type-safety and maintainability across the codebase.
56 Commits • 13 Features
Feb 1, 2026February 2026: Brain-up/brn delivered a major stability, performance, and modernization uplift across the stack, with emphasis on deployment reliability, API efficiency, security, and user experience. Key platform changes included stack modernization, TLS/domain hardening, frontend UX improvements, asset optimization, and architecture refactors aligned with WarpDrive. Key deliveries: - Infrastructure upgrades and deployment hardening: Ember 4.12 and Node 22 upgrades; CI-friendly certbot and non-interactive renewal in CI; nginx gzip tuning and headers; domain cleanup (brainup.fun removed) and default_server restructuring; improved create_cert workflow and test integration. - TLS/certificate and domain reliability: fixed SSL coverage for brainup.site, automated renewal paths, and certificate naming/alignment with nginx; removed deprecated domain lineage to prevent mis-served certs. - Frontend/UI enhancements and asset optimization: mobile scroll fixes, spinner centering, landing button alignment, CSS/class-order/lint improvements, responsive tweaks for statistics page, and a ~90% size reduction by replacing large SVG wrappers with optimized PNG assets. - API performance and data access improvements: major N+1 query fixes and caching across endpoints (contributors, series/subGroup, studyHistory, tasks); added indices and batching to reduce per-request queries from hundreds to a few; cache invalidation strategies to keep data fresh. - Architecture, migration, and code quality: Phase 2 adapters/serializers replaced by two RequestManager handlers; Phase 3 model migrations to SchemaRecord; TypeScript upgraded to 5.9.3; substantial ESLint and test coverage improvements; regression-safe refactors across services. Impact: - Faster, more reliable deployments and CI workflows; lower operational risk due to TLS/domain resilience; marked improvements in API latency and scalability under load; improved mobile UX and localization readiness; stronger type-safety and maintainability across the codebase.
February 2026
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for Brain-up/brn: Configuration-only domain name update to align deployment metadata with branding; no functional code changes. Commit 2531ea14f16f171486128e49de94b2c3243f8027 ("chore: update domain name"). This work improves deployment reliability, reduces domain-name drift across environments, and strengthens governance of domain metadata.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for Brain-up/brn: Configuration-only domain name update to align deployment metadata with branding; no functional code changes. Commit 2531ea14f16f171486128e49de94b2c3243f8027 ("chore: update domain name"). This work improves deployment reliability, reduces domain-name drift across environments, and strengthens governance of domain metadata.
Activity
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Quality Metrics
Correctness95.0%
Maintainability86.8%
Architecture87.8%
Performance87.4%
AI Usage42.6%
Skills & Technologies
Programming Languages
CSSDockerfileGTSGradleHTMLHandlebarsJSONJavaScriptKotlinNginx
Technical Skills
API DevelopmentAPI developmentAPI integrationAPI mockingAudio ProcessingBackend DevelopmentCI/CDCSSCSS FlexboxCSS frameworksCSS stylingCertificate ManagementContainerizationContinuous DeploymentContinuous Integration
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline