What is denokv?

Deno KV is a key-value database built into Deno, a JavaScript runtime. It lets you store and retrieve data quickly using simple JavaScript commands. By default, you can use it locally during development, or you can pay for a managed cloud service called Deno Deploy. Denokv is a self-hosted version of that cloud service. It gives you the freedom to run the same database on your own server, at no cost, while keeping the same JavaScript-friendly interface. The tool works by running a lightweight server process that your Deno applications connect to over the network. Under the hood, it relies on SQLite, a very reliable and widely-used database engine. The server is designed to handle thousands of concurrent requests from hundreds of different application processes at the same time. Your apps simply point to the server's address, provide a secret access token for security, and start reading and writing data as if the database were running locally. This project is designed for developers and teams who already use Deno KV but need multiple application instances to share a single database. For example, if you have several web servers running simultaneously and they all need to read and update the same user session data, you would point them all at your own instance. The trade-off is that you are responsible for hosting it, keeping it updated, and managing backups. The project explicitly notes that you must run it on a server with persistent storage, meaning it cannot run on platforms that automatically scale to zero or spin up new instances on the fly. Setting it up is straightforward. You can run it using Docker, a standard tool for packaging and running software, or download a standalone binary. The README provides clear instructions for deploying on a basic virtual private server or on platforms like Fly.io. One important detail is that the server itself communicates over plain HTTP, so you need to place a secure proxy in front of it to encrypt traffic. The project supports standard proxy tools for this purpose.