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A post by Bosscher describes using a $10 OpenStick as a low-power, passively cooled Debian server for a collection of self-hosted services. The examples include DNS filtering, service monitoring, RSS, bookmark archiving and a Telegram-connected AI agent; the reported memory use and performance figures come from the author, not an independent test.
Bosscher says a $10 OpenStick is running a collection of self-hosted services on Debian, including DNS filtering, server monitoring, RSS reading and bookmark archiving. The report offers a concrete example of how a low-cost, low-power device can serve as a small homelab, while its performance and resource figures remain the author’s own observations.
The device’s listed specifications are 512 MB of RAM—about 450 MB usable—four 1 GHz ARM Cortex-A53 cores and 4 GB of eMMC storage. Bosscher also lists Wi-Fi, a 4G modem, GPS and passive cooling. The post says the device runs Debian after an installation process the author describes as involved, making systemd and Podman available for managing services and containers.
The services cover several common home-server tasks. AdGuard Home filters domain requests, while the author’s own fork is reported to use about 40 MB of memory with large blocklists. Bosscher says that after adding blocklists, about 60% of DNS queries were blocked on their setup; the post does not give a measurement period or independent verification. The author cautions that DNS filtering cannot block every unwanted request and recommends the official AdGuard Home version to readers who do not want to run a third-party fork.
Other listed tools include Beszel for resource monitoring and alerts, Dozzle for viewing Podman logs, and Gatus for checking whether services are available. Bosscher reports that Beszel uses roughly 20 MB across its agent and server, and Gatus about 10 MB. The setup also includes Fusion, an RSS reader reported at 22 MB, and Shiori, a bookmark manager that archives websites and is reported at around 10–20 MB. Those figures are estimates supplied in the post, not standardized benchmarks.
Small Hardware, Practical Home Services
The example matters to readers interested in self-hosting on a tight budget: it shows a low-spec device being used for multiple narrow services rather than one demanding application. Passive cooling and the author’s description of minimal power use make the OpenStick attractive for a quiet, always-on setup, though the post gives no power-consumption measurement or electricity-cost estimate.
The account also illustrates the limits of that approach. With about 450 MB of usable RAM and only 4 GB of storage, service selection and resource use matter. Bosscher says the device is not a powerful computer, but reports that the listed tools fit the author’s needs. Readers should treat that as a personal deployment, not evidence that every OpenStick unit or software configuration will perform the same way.
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From Novelty Device to Debian Server
Bosscher says the OpenStick was bought on a whim for $10 including shipping, initially as an unusual piece of hardware. The device’s modest specifications led the author to focus on lightweight services rather than a broad server stack. The report contrasts this approach with the author’s earlier use of a Kubernetes cluster, which hosted OpenClaw but, according to Bosscher, consumed more than 1 GB of memory and was frustrating to maintain.
The post presents Podman containers and small services as a better fit for this particular machine. It also describes using Cloudflare Tunnel to make services reachable without opening ports on the home network. Bosscher acknowledges a possible privacy trade-off involving Cloudflare, but the report does not provide a security audit or detail the tunnel’s configuration.
“A DNS blocker cannot block all bad requests (you’ll need a proper firewall for that), but it sure can block a whole lot.”
— Bosscher, describing AdGuard Home
Performance and Security Caveats
The supplied report does not identify its publication date, provide test methods, or independently verify the listed memory figures. It is also unclear how the services perform under heavier traffic, how much storage remains available after installation, or how much electricity the device uses in practice. Bosscher’s claim that about 60% of DNS queries were blocked describes the author’s setup; the post gives no time window, query count or comparison baseline.
Security depends on configuration as well as software choice. Bosscher says Zeroclaw has access to the OpenStick, effectively giving it a root shell on that device, while stating that access does not extend beyond it. The report does not describe a security review of the setup. The author also notes that Cloudflare Tunnel routes access through Cloudflare, but provides no technical assessment of the privacy implications.
Possible Updates to the Setup
Bosscher says a contribution to Zeroclaw is intended to add rich-message support for Telegram in a future version, and that the pull request can be tracked through the project. The author uses Telegram to check server status and receive monitoring alerts, including when away from home with limited signal.
The report does not announce a new product, formal test or planned follow-up date. Any next development will depend on the software projects and the author’s own configuration; readers would need to check the linked project documentation and the source post for later updates.
Key Questions
What is an OpenStick in this report?
It is the $10 device Bosscher describes as a small server, with 512 MB of RAM, four 1 GHz ARM Cortex-A53 cores and 4 GB of eMMC storage.
What services does Bosscher run on it?
The reported setup includes AdGuard Home, Zeroclaw, Beszel, Dozzle, Gatus, Fusion and Shiori, along with Cloudflare Tunnel and a service for skipping sponsorships on Google Cast devices.
Can DNS filtering block every unwanted connection?
No. Bosscher explicitly says DNS filtering has limits and cannot block every unwanted request; the author says broader protection requires a firewall.
Are the performance figures independently verified?
No independent test is supplied. The memory figures and the claim that about 60% of DNS queries were blocked are the author’s observations, without a stated measurement period or test method.
What is planned for the setup?
Bosscher says a future Zeroclaw version may add rich-message support for Telegram through a contribution the author has submitted. The post gives no release date.
Source: blog.bosscher.ch
