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Developer tools · #nim
Learn how to call C's printf from Nim using the FFI pragma, compile with the correct linker flags, verify the output, and troubleshoot common linking issues.
Stop-the-world GC pauses can ruin real-time performance. Learn how Nim's ARC and ORC provide deterministic memory management and how to handle reference cycles.
Mixing meters and seconds compiles in most languages. Nim's distinct types catch that at compile time with no runtime overhead, forcing explicit conversions for semantically different values that share a representation.
Compile Nim with --gc:orc to get reference counting plus an incremental cycle collector, giving deterministic cleanup and low latency for graph‑heavy services while avoiding stop‑the‑world pauses.
When nimble upgrade is interrupted by a network failure or other error, the affected package directory can be left with partial or corrupted files. Nimble performs in-place replacement without a transactional rollback or automatic backup of the previous version, so the package may become unusable. The nimble check command verifies integrity but does not repa