Tendril: a garden assistant you barely have to open

Description and use

Tendril is an offline garden assistant that generates weather‑aware watering and pest plans, uses voice input, and displays tasks as a lock‑screen image to reduce phone usage.

Problem

Gardeners need a lightweight, offline assistant that plans watering and pest tasks based on weather and user input without constant phone interaction.

Outcome

Tendril delivers concise, weather‑aware watering and pest plans, reduces phone usage, and runs entirely offline on a local machine, saving costs and ensuring privacy.

Workflow

• 1. User sets city, adds plants, scans QR to add app to home screen.
• 2. Every Sunday 7 AM the server fetches Open‑Meteo forecast and runs Qwen 2.5 (3B) via Ollama to generate a JSON plan of up to two tasks per day, each under six words.
• 3. The plan is rendered as a single image for the lock screen using Pillow.
• 4. Each morning the server checks the forecast; if rain or heat spikes occur overnight it rewrites only that day’s tasks.
• 5. User taps "Done" or speaks a note; faster‑whisper turns speech to text, a keyword check validates watering and pest actions, and the plan is updated.
• 6. If tasks remain after 6 PM a single gentle reminder is shown; no further nudges.
• 7. The app runs locally with Docker Compose, storing data in SQLite and using no external accounts.

Evidence

It plans the week from the weather. Every Sunday at 7 AM it reads the forecast, and a small open model running on my own machine writes a plan: at most two tiny tasks a day, each under six words.

Source

It checks the sky every morning. If rain shows up overnight, or a heat spike, it quietly rewrites just today's tasks.

Source

Tell it what you did. Tap Done, or hold the mic and say something like "Watered the chillies, there are aphids under the tulsi leaves." It ticks off the watering, and since aphids are serious, it re-plans the rest of the week with neem oil first.

Source

No accounts. Set your city, add your plants, scan a QR code, add it to your home screen. Done.

Source