bb745c43cc
Bug: Setting a task input property to undefined (e.g. { prune: undefined })
to express "this key should be deleted" resulted in no task being created.
JSON.stringify strips undefined values, so { prune: undefined } serialized
as {}, and is_partial_of({}, any_config) always returns true — meaning
input-not-matches saw a "match" and never activated the task.
Fix (two parts):
- SDK: coerce undefined to null in task input values before serialization,
so they survive JSON.stringify and reach the Rust backend
- Rust: treat null in a partial as matching a missing key in the full
config, so tasks correctly deactivate when the key is already absent
Assumption: null and undefined/absent are semantically equivalent for
StartOS config values. Input specs produce concrete values (strings,
numbers, booleans, objects, arrays) — null never appears as a meaningful
distinct-from-absent value in real-world configs.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
StartOS
What is StartOS?
StartOS is an open-source Linux distribution for running a personal server. It handles discovery, installation, network configuration, data backup, dependency management, and health monitoring of self-hosted services.
Tech stack: Rust backend (Tokio/Axum), Angular frontend, Node.js container runtime with LXC, and a custom diff-based database (Patch-DB) for reactive state synchronization.
Services run in isolated LXC containers, packaged as S9PKs — a signed, merkle-archived format that supports partial downloads and cryptographic verification.
What can you do with it?
StartOS lets you self-host services that would otherwise depend on third-party cloud providers — giving you full ownership of your data and infrastructure.
Browse available services on the Start9 Marketplace, including:
- Bitcoin & Lightning — Run a full Bitcoin node, Lightning node, BTCPay Server, and other payment infrastructure
- Communication — Self-host Matrix, SimpleX, or other messaging platforms
- Cloud Storage — Run Nextcloud, Vaultwarden, and other productivity tools
Services are added by the community. If a service you want isn't available, you can package it yourself.
Getting StartOS
Buy a Start9 server
The easiest path. Buy a server from Start9 and plug it in.
Build your own
Follow the install guide to install StartOS on your own hardware. . Reasons to go this route:
- You already have compatible hardware
- You want to save on shipping costs
- You prefer not to share your physical address
- You enjoy building things
Build from source
See CONTRIBUTING.md for environment setup, build instructions, and development workflow.
Contributing
There are multiple ways to contribute: work directly on StartOS, package a service for the marketplace, or help with documentation and guides. See CONTRIBUTING.md or visit start9.com/contribute.
To report security issues, email security@start9.com.