Incremental Static Regeneration is the bridge between the two extremes of web rendering. Pure static generation produces fast pages but freezes content at build time. Pure server-side rendering produces fresh content but pays a computation cost on every request. ISR takes a third path: it serves static HTML from a cache, and when that cache…
A mount performed at the shell lasts until reboot. A mount written into /etc/fstab survives. That distinction is the entire purpose of the file: it is the static description of which filesystems the system should attach at boot, read by mount, fsck, and umount as they iterate through its records in order . The LFCS…
A filesystem that has been created but not mounted is inert. The kernel sees a block device with metadata on it, but no path leads from the directory tree to the files inside. mount is the command that connects the two: it attaches a filesystem to a directory, making the filesystem’s contents appear at that…
mkfs is the command that turns a raw block device into something the kernel can mount. It is a front-end, not an implementation: mkfs itself does almost nothing except locate and execute the filesystem-specific builder for the type you request . Understanding that distinction is the first step toward using it correctly, because the options…
A Linux system administrator does not format a disk “with Linux.” They format it with a specific filesystem, and that choice determines what the storage can do: whether it can shrink, whether it can snapshot, whether it can recover from a power loss without a lengthy check, and how it behaves under concurrent load. The…
parted is the partition editor that LFCS candidates reach for when a disk exceeds the limits of MBR or when a script needs to create a layout without interactive prompts. Unlike fdisk, which stages changes until a final w commit, parted applies each command immediately, and that immediacy is both its convenience and its hazard….
Building HTTP request payloads by hand is tedious. You miss a header. You mess up the form-data boundaries. You forget how to format cURL. You spend an hour debugging a request that was malformed from the start. I built a free tool that solves this. What it does: Use cases: Privacy:100% client-side. Nothing uploaded. Try…
Rust’s foundational aliasing rule is simple to state: a value can have either many shared references or exactly one mutable reference, never both. The compiler enforces this statically, and the optimizer relies on it to generate fast code. But some programs need mutation through a shared reference—a cache that updates on read, a reference-counted pointer…
Rust’s type system forbids unused generic parameters in struct definitions. A lifetime that appears in a struct’s header but nowhere in its fields is unbounded, and unbounded parameters cause the compiler to reject the definition outright. This restriction exists because unused parameters leave the compiler unable to reason about variance, drop safety, and auto-trait propagation….
![Rust 98 🦀 Memory Layouts: #[repr(C)], Alignment, and Structure Packing](https://tuts.kandz.me/wp-content/uploads/2026/10/Screenshot_20261023_175016-767x651.jpeg)
Rust’s default memory layout is deliberately unspecified. The compiler is free to reorder fields, insert padding, and choose representations that minimize size or maximize access speed, and it may change those decisions between compilation sessions or target platforms. For most code this is invisible and beneficial. But when a type crosses an FFI boundary, when…