Privacy notice

Last updated 25 October 2026

Who we are

This website, arkyn.datsov.com, is run by ProSolve Ltd, which develops Arkyn OS under its DatSov brand. ProSolve Ltd is the controller for any personal data described here.

• Registered name: PROSOLVE LTD
• Registered in England and Wales, company number 13955695
• Registered office: 483 Green Lanes, London, England, N13 4BS
• Privacy contact: Arkyn@datsov.com

What this website does not do

• No cookies of any kind.
• No analytics, tracking pixels, fingerprinting or advertising.
• No third-party requests. Fonts, scripts, images and the search index are all served from arkyn.datsov.com. No CDNs, no embedded videos, no social widgets.
• No forms and no accounts. Nothing you type on this site is sent anywhere. The passphrase box and terminal in the interactive tour run entirely in your browser and store nothing.
• No referrer leaks. Links to other sites don’t tell them you came from here.

What does touch your data

Our host, Vercel

The site is hosted by Vercel Inc. Like any web host, Vercel processes the technical data needed to deliver pages and protect the site from abuse: your IP address, the page requested, your browser’s user-agent string and the time. Vercel acts as our processor under its data processing addendum. We have not turned on Vercel Web Analytics, Speed Insights or any other analytics product, and we don’t use this data to identify or profile visitors. Our lawful basis is legitimate interests: running a secure website.

Outside the UK. Vercel Inc. is based in the United States and serves pages from data centres around the world, so this technical data may be processed outside the UK. Vercel states that it is certified under the EU–US Data Privacy Framework and its UK Extension, and it uses standard contractual clauses with the UK Addendum where those apply. How Vercel handles data itself is set out in Vercel’s privacy policy.

How long. Vercel shows us basic request logs in its dashboard for a short period, between one hour and one day depending on our plan, so we can fix problems. We don’t export or copy them, and we use no log drains or log storage services.

Your browser’s own storage

In the documentation, your browser stores two small settings on your own device, so the docs work the way you left them:

• Your light or dark theme, in local storage — only if you choose one.
• Which sidebar sections are open, in session storage — cleared when you close the tab.

Neither is a cookie, neither is ever sent to us or anyone else, and neither is used to track you. You can clear both in your browser’s settings at any time; the docs still work without them.

Emails you send us

If you email Arkyn@datsov.com — to join the beta, report a bug or ask a question — we receive your email address, name (if your mail shows one) and whatever you write, including any logs or photos you attach. We use it only to reply, to run the beta (for testers: sending the download link and release notes), and to fix what you report. We don’t add you to a mailing list, sell or share your details, or use them for marketing.

Where your email is stored. Our mailbox is Proton Mail, run by Proton AG of Geneva, Switzerland, which acts as our processor under its data processing agreement. Proton says its mail servers are located only in Switzerland, Germany and Norway. It says it stores message bodies and attachments with zero-access encryption, so it cannot read them; subject lines, sender and recipient addresses and dates are encrypted at rest but not protected in the same way. All three countries are covered by UK adequacy regulations, so no further transfer safeguards are needed. Mail you send us still travels across the internet to reach Proton; unless your provider encrypts it end to end, treat it like any other email.

Lawful bases:

• Answering you, fixing bugs, and improving Arkyn — legitimate interests.
• Running the beta for testers — taking the steps you asked for before giving you the beta, and legitimate interests.
• Security reports — legitimate interests in fixing problems and watching for them returning. We name a reporter publicly only if they ask us to (with their consent, which they can withdraw at any time).
• Records of data-rights requests and complaints — legal obligation, to show we met our duties.

You don’t have to email us, and nothing on this site requires you to give us personal data; if you don’t, we simply can’t reply or add you to the beta. We make no automated decisions or profiles about you. We aren’t required to appoint a Data Protection Officer; a director of ProSolve Ltd is responsible for data protection.

How long we keep emails

We keep personal data only as long as we need it, and review our mailbox monthly against this schedule:

When a period ends we delete the message and its attachments from the mailbox. Proton says it keeps encrypted backups for up to 30 days; after that, deleted messages should no longer exist in its systems. If you ask us to delete your data sooner, we will, unless we need it to establish, exercise or defend a legal claim — and then we’ll tell you.

Donations

The donate page shows addresses; it doesn’t process payments and we never ask who you are. Payments on Bitcoin, Ethereum, Solana and Tron are recorded permanently on public blockchains that anyone can read. Monero is designed to hide the sender, receiver and amount. Paying our Lightning address makes your wallet contact cake.cash, the service that hosts it, which can see your IP address and the payment request under its own terms; we don’t receive that information.

Your rights

Under UK data protection law (the UK GDPR and the Data Protection Act 2018) you can ask for a copy of the personal data we hold about you, have it corrected or deleted, object to or restrict how we use it, and receive it in a portable form. Email Arkyn@datsov.com; we’ll answer within one month, or tell you within that month if a complex request needs up to two months more, and why.

Your right to object. Where we rely on legitimate interests, you can object at any time by emailing Arkyn@datsov.com. We will stop unless we have compelling legitimate grounds that override your interests, or need the data to establish, exercise or defend a legal claim.

Complaints. To complain about how we handle your data, email Arkyn@datsov.com with “Complaint” in the subject. We’ll acknowledge it within 30 days, look into it, and tell you the outcome. You can also complain to the Information Commissioner’s Office at any time, whether or not you’ve complained to us: ico.org.uk/make-a-complaint, telephone 0303 123 1113.

Arkyn OS itself

This notice covers the website. Arkyn OS has no telemetry: Ubuntu’s crash reporting, usage reporting and Ubuntu Pro client are removed. A running Arkyn system still talks to the network to do its job — mainly:

• package updates from the Ubuntu archive and the vendor repositories it uses (COSMIC PPA, LibreWolf, VSCodium, Proton VPN, Mullvad, Claude Code, GitHub CLI), and Flatpak apps from Flathub;
• DNS lookups to Quad9, over TLS where the network allows — or to your VPN’s resolver when a VPN is on;
• during installation, one small download from archive.ubuntu.com to check you’re online;
• on your local network only, KDE Connect when you pair a phone;
• anything you sign in to yourself (Proton, Mullvad, Claude Code, GitHub, Steam…), under those services’ own terms.

The security docs explain each of these, and what Arkyn can’t protect you from.

Changes

If we change how this site handles data, we’ll update this page and the date at the top. We won’t add tracking quietly.