# Kanboombo Developers

Build what lands on your readers' days. Start with calendar plug-ins: dated records from sources you trust, checked, approved and kept.

You will always need a calendar, and so will the people who read with you.
Kanboombo puts what lasts on their days. You can add to it.

## Calendar plug-ins

A calendar plug-in puts dated records on your readers' days: a central bank's
rate, a council's meetings, a harbour's tides. It is a folder with a manifest
and a fetcher. Kanboombo downloads the files you declare, runs your fetcher
with no network, checks every record and keeps every revision.

- [Read the overview](/developers/plugins/): the folder, and how it runs.
- [Start the quickstart](/developers/plugins/quickstart/): a plug-in that passes its checks in ten minutes.
- [Download kanboombo-plugin.mjs](/developers/plugins/kanboombo-plugin.mjs): the tool, one file for Node 24.
- [Read the manifest](/developers/plugins/reference/manifest/): every field and every limit.

## For agents

Every page is Markdown too: add `.md` to its address, or ask for
`text/markdown`. [llms.txt](/developers/llms.txt) lists every page;
[llms-full.txt](/developers/llms-full.txt) holds them whole.