Go
Fundamentals (101–120), idioms, runtime, and SOLID in Go. Pick a sub-area to drill into.
Fundamentals (101–120)
0The 101–120 series — language core, runtime touchpoints, and the toolchain.
Concurrency
1Goroutines, channels, context, and the patterns that compose them.
Data structures
0Maps, slices, structs, sets — Go's built-in containers and the idioms around them.
Runtime & releases
0GC, scheduler internals, and what each Go version actually ships.
Idioms & design
1SOLID in Go, project layout, error handling — the small choices that scale.