InvenTree is an inventory management system for electronics manufacturers, makerspaces, and small-to-medium businesses. The hierarchical part categorization system organizes components into unlimited nested categories, while stock items tracked across cascading locations and sub-locations provide instant visibility into current inventory levels, with optional serial number tracking for individual item traceability and acceptance testing. Intelligent BOM management calculates sub-part requirements, validates availability against current stock, supports multi-format BOM upload including KiCad integration, and generates detailed bills of materials with full database enrichment. Build orders consume BOM-allocated stock to produce assembled parts with step-by-step work order tracking, while purchase orders manage supplier relationships with pricing history, lead times, and automatic stock receipt processing. The modern React frontend built with Mantine, TanStack Query, and Zustand provides responsive data tables, tree-select navigation, a preview drawer, and a snippet editor. The extensible plugin system supports 19 mixin types including BarcodeMixin for scanner integration, LabelPrintingMixin for Zebra and Brother printers, AppMixin for custom database tables, and ScheduleMixin for periodic background tasks. Companion mobile apps on Android and iOS provide barcode scanning and stock operations in the warehouse. Docker Compose deploys with PostgreSQL, MySQL, or MariaDB backends behind any reverse proxy. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Every batch a craft business ships carries a recipe version, a cost, and a trail of ingredient lots, and Craftplan, an open-source ERP, keeps all three connected. Receiving stock against a purchase order records each supplier lot code and optional expiry date, and partial deliveries keep the order open. Customer orders appear on a delivery calendar and can generate invoices. Scheduled items wait on the production board as unbatched cards until Batch All creates one batch with a frozen copy of the recipe. Capacity warnings flag products over their daily limit, and a forecast highlights materials that will run short. Finishing a batch consumes ingredient lots earliest-expiry first, skips any lot on hold or rejected, and snapshots material, labor, and overhead costs. Recipes are versioned, so past costs never change. A blend made in-house can be stocked as its own material, with its actual yield, lot costs, and source lots intact. Allergens and nutrition facts roll up from each material through every recipe, and completed batches print A5 or compact labels with a scannable barcode. The Trace Center follows a supplier lot forward to every customer who received it, or a finished batch back to its sources. Recall mode can place the lot on hold, and the trace exports as CSV or prints for the recall file. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.