Skill UI

Covers core principles of 2D game systems, from sprite management and tilemap layering to physics, cameras, and genre patterns, helping developers design clear, responsive 2D gameplay.

Deep expertise building firmware, drivers, and HAL layers for ARM Cortex-M families such as Teensy, STM32, nRF52, and SAMD, with focus on peripherals, DMA, interrupts, and maintainable architecture.

Establish a multi-layer API authentication system covering JWT issuance, OAuth2 flows, API keys, RBAC, refresh rotation, brute-force protection, and dedicated security tests for endpoints and sessions.

A content-hash cache pattern that keys expensive file-processing results with SHA-256 digests so renames/moves stay cacheable and content changes propel invalidation; ideal for building CLI pipelines with extractors where processing needs a cache layer without polluting pure functions.

Assess Bitcoin Lightning Network protocol designs, compare channel factory approaches, and analyze Layer 2 scaling tradeoffs by reviewing trust models, on-chain footprint, consensus requirements, HTLC/PTLC compatibility, liveness, and watchtower breach detection for architecture reviewers.

Technical reference for implementing Lightning Network channel factories, multi-party channels, and LSP architectures, covering MuSig2 aggregation, timeout trees, HTLC/PTLC forwarding, and watchtower breach detection to scale Bitcoin Layer 2 without soft forks.

Automates PowerShell malware deobfuscation by blending AST analysis, dynamic Invoke-Expression tracing, and tools like PSDecode/PowerDecode to untangle multi-layer obfuscation and expose hidden payloads plus C2 infrastructure for response and detection tuning.

Configures Fail2ban with custom filters and actions to detect port scans, brute force SSH/HTTP/FTP attacks, automatically ban suspicious IPs, and alert teams before reconnaissance reaches deeper IDS/IPS layers.