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Create your own off-grid library
https://wrolpi.org
305c73921e
Counting bulk hardware (screws, nails) by hand is slow. This adds a workflow
to estimate the count from weight instead: weigh one item, weigh the lot, and
the count is filled in automatically.
- The Fields modal gains a "Count by Weight" button that adds two quantity
fields, Unit Weight and Total Weight (default grams), and tags the Count
field as computed. An existing `count` field is linked in place rather than
duplicated, so hand-counted items keep their values.
- The link is plain metadata on the Count field
(`compute: {kind: 'count_by_weight', total, unit}`), so it round-trips
through the config/API with no backend change (covered by a backend test).
- During item entry, Count = round(Total Weight / Unit Weight), converting
mismatched units first (g/kg/oz) and refusing to divide when only one side
has a unit. It rounds to a whole number (no 403.7 nails).
- When a weight changes, the count always reflects the new reality: it is set
to the computed value (0 for a sub-unit total) when both weights are present,
or cleared when they can't produce one (a weight blanked, incompatible
units) — so a stale count can never persist against edited weights. A
hand-typed count is only touched when a weight actually changes.
countByWeight lives in units.js; the field preset, config detection, and the
entry-time apply hook live in a new computeFields.js. Covered by unit tests
(countByWeight, computeFields), InventoryTable auto-fill / clear / sub-unit on
draft and inline edit, the FieldSchemaEditor preset, and a backend
field-metadata round-trip.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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| wrolpi | ||
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| help.sh | ||
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| LICENSE | ||
| main.py | ||
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| upgrade.sh | ||
WROLPi
Create your own off-grid library.
WROLPi is a self-contained collection of software to help you survive the world Without Rule of Law.
WROLPi is intended to be run on a Raspberry Pi with an optional external drive attached. It serves up it's own Wi-Fi network so that any user with a laptop/tablet/phone can connect and use the library created by the maintainer.
Table of Contents
Features
- Videos
- Web Archives
- Maps
- Wikipedia
- File search
- eBooks (EPUB / PDFs)
- Wi-Fi Hotspot
- Universal search
- Food Inventory management
- One-Time pad generator, encrypter/decrypter
- Synchronizer/duplicator
- Food storage calculator
Module features matrix
| Module | View | Search | Download | Project |
|---|---|---|---|---|
| Videos | yes | yes | yes | yt-dlp |
| Web Archives | yes | yes | yes | Singlefile |
| Wikipedia | yes | yes | yes | Kiwix |
| eBooks | yes | yes | planned | EPUB/PDF |
| Map | yes | yes | yes | Protomaps |
| Podcasts/Audio | yes | planned | planned |
Demo
Download
Images are available at wrolpi.org
Try WROLPi!
You can try out WROLPi by running the docker containers.
- Install docker-ce and docker-compose
- Copy the latest WROLPi code.
git clone https://github.com/lrnselfreliance/wrolpi.git
- Change directory into the code base.
cd wrolpi
- Initialize git submodules
git submodule update --init
- Build the containers.
docker-compose build --parallel
- Create volumes.
docker volume create --name=openstreetmap-datadocker volume create --name=openstreetmap-rendered-tiles
- Start the database.
docker-compose up -d db
- Initialize the database.
docker-compose run --rm api db upgrade
- Start the docker containers.
docker-compose up
- Browse to WROLPi.
More Docker documentation is available in docker/README.md
Install WROLPi
Full installation instructions are in INSTALL.md. Pick the option that matches your hardware:
- WROLPi Portable (Live USB) — boot a complete WROLPi from a USB stick on any x86 PC or laptop. Nothing is installed to the computer; the first boot creates a persistence partition on the USB so your library, database, and configuration survive reboots.
- Debian 12 — install WROLPi onto an x86 PC or laptop.
- Raspberry Pi — install WROLPi onto a Raspberry Pi with an external drive.
- Docker — run the WROLPi containers on an existing Linux host.
Charter
Guiding Principals
- Storage is cheaper than power.
- Two is one, one is none.
- Run silently.
- Primary, secondary, tertiary.
- Secure as a bookshelf in your home.
Physical properties
- A WROLPi instance should be capable of running with a minimal of hardware:
- Raspberry Pi
- SD card
- External USB hard drive
- Power supply and cables
- Wi-Fi USER device such as a phone, tablet, or laptop.
- A WROLPi instance should consume a minimal amount of electricity during WROL event. It is expected power will be scarce when WROLPi is needed most.
User expectations
- A WROLPi instance should be run and maintained by a person (MAINTAINER) with a moderate amount of Linux and Raspberry Pi experience. It is expected that they should be able to do this using only the documentation on their WROLPi.
Software properties and capabilities
- A WROLPi instance should be able to "factory-reset" itself without any outside services.
- WROLPi should function completely without any internet services.
- A user should have easy access to their data if WROLPi fails:
- For example, a user can watch their videos by navigating a short and intuitive directory structure and opening the video in their preferred video player.
- WROLPi should be self-documented. The UI should contain a tutorial for USERS as well as the MAINTAINER.
- If the UI isn't functional, the code should be documented such that a user can restore functionality.
- WROLPi should favor pre-processing, rather than processing during a WROL event. Such as re-encoding a video, or processing captions. This is to ensure that when a user adds content during non-WROL time, the processing for optimum performance is already done for a WROL event.
Join!
