@hertzg

Seekable binary reader/writer over a buffer. DataView-like cursor API for signed/unsigned integers (8–64 bit), floats (16/32/64), bit arrays, and byte slices, with chainable get/set.

Type-safe binary structure encoding/decoding for TypeScript. Composable coders for integers, floats, strings, arrays, and nested structs with explicit endianness and reference support.

Parse hex strings with flexible separators (spaces, dashes, underscores) to ArrayBuffer or Node.js Buffer.

CRC checksum library for CRC8/16/32/64 with common presets (CCITT, IBM, ECMA, Maxim, Castagnoli/CRC32C, Koopman, ISO) plus custom polynomials and memoized factories.

Internet stack orchestration for @binstruct/* packet coders. Walks Ethernet II frames top-down through IPv4/ARP and UDP/ICMP, plus the RFC 1071 16-bit one's complement Internet Checksum.

Dual-stack IPv4/IPv6 parsing, formatting, validation, and classification with CIDR utilities. RFC 4291 IPv6 compress/expand, IPv4-mapped unwrap, network math, range checks, and address iteration.

EUI-48 MAC address parse and stringify utilities. Sister package to @hertzg/ip — same shape, single concern.

MyMagti API client with OAuth token retrieval and refresh. Mimics the mobile app for authentication.

MikroTik RouterOS API client. WebStreams-based, zero-dependency implementation with concurrent command execution.

TP-Link router API client for EU/GDPR models (TL-MR6400, Archer series). Handles proprietary AES+RSA encryption and authentication

WireGuard wg-quick configuration parser/stringifier. Full support for Interface and Peer sections including addresses, DNS, and hooks.

WireGuard control library for managing interfaces programmatically. Aims for wg-quick command parity.

INI file parser and stringifier with support for duplicate keys, sections, and stream-based transformers.

WireGuard key generation. Create private keys, preshared keys, and derive public keys using X25519. Compatible with wg genkey/genpsk/pubkey.

Parse and serialize HomeBank XHB files (XML-based personal-finance format) with byte-for-byte round-trip fidelity and typed entity access for accounts, categories, payees, and operations.