https://nalar.dev/tags/initialization/ Recent content in Initialization on Nalar Hugo en-us Mon, 07 Sep 2026 00:00:00 +0700 https://nalar.dev/initialize-shared-rust-state-once-with-oncelock/ Mon, 07 Sep 2026 00:00:00 +0700 https://nalar.dev/initialize-shared-rust-state-once-with-oncelock/ <p>Applications often need one shared value that is expensive or awkward to construct but should not change after initialization. Examples include parsed configuration, a lookup table, a compiled matcher, or metadata discovered during startup.</p> <p>A plain <code>static</code> works only when the value can be created as a constant. A <code>Mutex&lt;Option&lt;T&gt;&gt;</code> can represent &ldquo;not initialized yet,&rdquo; but it also introduces a lock and a mutable state model that the program may not need after setup.</p>