1. Software Development

Provides expert guidance for EMP CLI, Rspack, and module federation in micro-frontend development, build configuration, and debugging.

Debugs memory errors, crashes, and segfaults in applications using Valgrind integrated with nextest via pre-configured profiles.

Analyzes code performance using callgrind and valgrind with nextest integration to identify bottlenecks and optimize instruction counts and cache behavior.

Provides guidelines for using facet crates (facet-json, facet-toml, facet-args) as alternatives to serde for consistent internal tooling in Rust development.

Systematic debugging workflow: reproducing bugs with real data, reducing test cases to minimal examples, and adding regression tests to prevent recurrence.

Provides orientation for facet-format JIT deserialization, covering tiering, fallbacks, key types, and debugging strategies for JIT code changes.

Debugs and fixes billing endpoints for subscriptions, invoicing, and Stripe integrations, supporting both legacy and v2 architecture.

Manages API versioning by handling breaking changes, creating version files, data transformation, and ensuring backward compatibility.

Creates integration test cases for billing/subscription features and endpoints in the Autumn billing system.

Guides React Server Components (RSC) in Next.js for server vs client component usage, data fetching, and composition patterns.

Guides implementation of Next.js Server Actions for form handling, data mutations, and revalidation in App Router.

Creates and manages Next.js App Router API routes, handling HTTP methods and streaming responses for RESTful endpoints.

Assists in creating and managing Next.js App Router routes, layouts, dynamic routes, and error boundaries for frontend applications.

Guides implementation of authentication and authorization patterns in Next.js, including NextAuth, middleware, and session management.

Provides a suite of tools for constructing multi-component Claude.ai HTML artifacts with React, Tailwind CSS, and shadcn/ui, supporting state management and routing.

Guides developers in constructing MCP servers for LLM integration with external APIs using Python (FastMCP) or Node/TypeScript (MCP SDK).

Checks Web API, DOM method, and CSS property compatibility in WebF to resolve feature implementation issues and find alternatives.

Configures hybrid routing with native screen transitions in WebF, replacing SPA routing for multi-screen application navigation.

Builds reusable web-accessible UI component libraries by wrapping Flutter widgets as custom elements for seamless web integration.

Develops custom WebF native plugins by wrapping Flutter packages into JavaScript APIs for web capabilities like camera, payments, and sensors.

Provides quick setup for WebF development: initializes WebF Go, creates React/Vue/Svelte projects with Vite, and loads first application.

Enables web applications to access native device capabilities like camera, geolocation, and payment via WebF plugins, extending beyond standard web APIs.

Solves WebF rendering issues by correctly handling onscreen/offscreen events and element measurements, preventing layout failures and incorrect style calculations.

Provides high-performance infinite scrolling with pull-to-refresh and load-more for large datasets in feed-style UIs, product catalogs, and chat applications using WebFListView.