| Go idioms, patterns, errors, concurrency, maintainability | systems-backend/subskills/golang-patterns/SKILL.md |
| Rust idioms, ownership, traits, errors, concurrency | systems-backend/subskills/rust-patterns/SKILL.md |
| Modern Zig 2026, Zig 0.16+, std.Io, language changes, build system, stdlib API shifts, porting | systems-backend/subskills/modern-zig-2026/SKILL.md |
| Odin language code, stdlib/core/vendor packages, memory management, tests, foreign bindings | systems-backend/subskills/odin/SKILL.md |
| Drizzle ORM, schema, migrations, relations, queries, transactions | systems-backend/subskills/drizzle/SKILL.md |