Open Source

Definition

Open source is the practice of licensing designs, code, documentation, or content so that anyone may inspect, use, modify, and redistribute them. It grew from the free-software movement (GNU, 1983; the OSI definition, 1998) and spread outward to open hardware (OSHWA definition, CERN OHL), open educational resources (CC licenses, UNESCO's OER recommendation), and open data. Its core claim is that shared, inspectable artifacts improve faster, cost less, and distribute capability more widely than closed ones.

Why It Matters Here

Open source is the load-bearing wall of this vault: it is why a school in Pretoria, a household in Guam, and a classroom in Chengdu can all build from the same net-cup STL, the same Arduino firmware, and the same free curriculum without paying license fees or asking permission. It converts scarce expertise into infinitely copyable files, enables local adaptation and translation, and — critically for education — lets students read and modify real production-grade systems rather than black boxes, turning consumers of technology into contributors to it.

Entries That Embody This Principle

• 3D Printing: Additive Manufacturing for Everyone (Wikibooks) — A community-written, CC BY-SA Wikibooks open textbook offering a general introduction to 3D printing technologies, usage, and applications with no prior experience assumed.
• ACCESS-3DP: 3D Printing Training for Craft Enterprises (Erasmus+ OER) — An Erasmus+-funded six-module 3D printing course (CC BY-NC-SA 4.0) for traditional and creative craft enterprises, with a trainer guide and multilingual e-learning platform.
• Additive Manufacturing Essentials (OpenStax) — A free, openly licensed (CC BY-NC-SA 4.0) OpenStax textbook covering additive manufacturing methods, materials, design, certification, and the business of AM.
• Agronaut — Open-source AI agronomy agent with a deterministic, cited aquaponics sizing engine — design, optimize, and troubleshoot fish-and-plant systems via chat, Telegram, or WhatsApp.
• Anmirazik's Aquaponic System — Beginner-friendly internship-built aquaponics monitoring and control system pairing Arduino Nano + ESP8266 firmware with a Node-RED MQTT dashboard for water level, TDS, pH, and temperature.
• Aqu@teach Erasmus+ Aquaponics Curriculum — Open-access, blended-learning aquaponics curriculum (5 ECTS) plus an entrepreneurial skills module, built by an Erasmus+ Strategic Partnership for higher education.
• ARC Climate-Smart Agriculture Training Manual (South Africa) — A free, modular Climate-Smart Agriculture training manual from South Africa's Agricultural Research Council, built with national departments and GIZ, for extension practitioners and farmers.
• Autoponics — ROS2-based autonomous deep-water-culture hydroponics system with AI plant-health monitoring, explicit-chemistry auto-dosing, dual-camera NDVI vision, and water management on Raspberry Pi CM4 + ESP32.
• BAE305 Aquaponics Project (University of Kentucky) — University of Kentucky BAE 305 (Spring 2022) student engineering-design project: an autonomous aquaponics system where fish tank and garden irrigate and filter water for each other under sensor control.
• CHANST3D SLA Laser-Curing 3D Printer — A student-led, reportedly 100% open-source unmanned SLA laser-curing 3D printer from Shanghai Jian Qiao University that won Shanghai gold in the 2024 China International College Students' Innovation Competition.
• Dzakovich Lab Protocols & STL Files for 3D-Printed Hydroponics — The Dzakovich Lab's open protocols.io methods and NIH 3D-hosted STL files for building, seeding, and running a 3D-printed modular hydroponics system.
• Edward.farm — Open-source citizen-science urban farming platform built around aquaponics stations that turn existing water bodies into shared, monitored food-producing ecosystems.
• GardenPi — Raspberry Pi–based multizone platform for hydroponic, aquaponic, irrigation, and fish-tank water management and monitoring, powered by the author's Neptune.py engine.
• Grow-Dojo Stack (GrowDojo) — Open-source, decentralized, privacy-focused modular automation stack for hydroponics, aquaponics, aeroponics, greenhouse, and closed-environment crop production.
• Hong Kong STEAM Aquaponics Teaching Materials — IoT-Connected Interdisciplinary Curriculum (Lok Sin Tong Yu Kan Hing Secondary School) — A GCCCE 2025-documented Hong Kong secondary-school project producing comprehensive open-source aquaponics teaching materials in which students laser-cut tanks and planters, then build automated IoT-connected systems with sensors, servos, and data analysis.
• Hydro_mod (unverified) — Placeholder entry for the 'Hydro_mod' open-source hydroponics repository named in the source survey; no matching primary repository could be verified — details unknown pending community input.
• Kybfarm (Kybfarm Embed) — Open-source IoT platform framework for vertical farming with a containerized server side and edge-side sensor/actuator interfaces, documented by an academic-style software manual.
• Layers to Leaves: Modular 3D-Printed Hydroponics Components — A peer-reviewed, CC0 suite of 3D-printed parts that assembles into scalable single- or double-tower hydroponics systems for research and education.
• Modular Hydroponic Tower Garden — Modular 3D-printable hydroponic tower garden with an Arduino-compatible water-pump controller, a Windows GUI, printable STLs on Thingiverse, and a manufacturable PCB.
• NewTechAqua-IRTA Aquaponic Kit for Schools — A free EU Horizon 2020 assembly guide (NewTechAqua/IRTA) for secondary schools to build two cheap aquaponics systems — a 127 L freshwater unit and a 13 L desktop unit — from budget-store parts.
• Open-Source 3-D Printing Course (Michigan Technological University) — Michigan Tech course (MSE4777/MY4777) where students build and keep an open-source RepRap 3D printer; full syllabus, modules, and projects free on Appropedia.
• Open3D-Education — Open educational resource repository (Brazil, UFF) where university students design, document, and openly license 3D-printed teaching aids each semester.
• OPNhydro — ESP32-C6 hydroponics controller (ESPHome firmware, KiCad PCB hardware) with full water-quality monitoring, A/B nutrient dosing, automatic top-off, and Home Assistant integration that still runs standalone if the network drops.
• Parametric Net Pot / Net Cup for Hydroponics, Aeroponics & Fogponics (Thingiverse 790339) — The canonical open-licensed OpenSCAD parametric net cup design on Thingiverse — generate any diameter/height net pot for hydroponics, aeroponics, or fogponics in seconds.
• Printables Hydroponics & Aquaponics Printable Components — Printables.com (Prusa) search collection of free, community-licensed 3D-printable hydroponic and aquaponic components — net cups, towers, fittings, rafts, and monitoring mounts.
• Project Feed 1010 (Institute for Systems Biology) — Institute for Systems Biology program combining aquaponics research, an NGSS-aligned food-security curriculum, and citizen science in classrooms.
• Prusa Education Program & Printables Educational Projects — Prusa Research's free educator program: ready-to-use 3D printing projects with lesson plans, a Printables-hosted project database, and beginner Academy courses for verified schools.
• Simple-Hydroponics-Arduino (Hydruino) — Hydruino: a professional-grade, fully configurable Arduino-library automation controller for hydroponic grow systems — 100% free and open source, with no internet connection or cloud account required.
• STL Finder (3D Model Search Engine) — Free meta-search engine that indexes 3D-printable models across many repositories at once — the fastest way to discover hydroponics/aquaponics parts (net cups, fittings, towers) wherever they are hosted.
• Thingiverse Hydroponics & Aquaponics Printable Components — Thingiverse (MakerBot/UltiMaker) search collection — the oldest and largest archive of free 3D-printable hydroponic/aquaponic parts, including classic tower systems such as thing:3405964.
• Tsinghua University Press Information Technology Grade 5 Textbook — Aquaponics Open-Source System Unit (2024) — Unit 2 of the 2024 Tsinghua University Press Grade 5 'Information Technology' (信息科技) textbook teaches open-source culture and feedback control through building a fish-vegetable symbiosis (aquaponics) open-source system.