Privacy

In short

• The contact form sends your name, email and note to Šarūnas. These records are deleted after 12 months.
• The AI assistant sends your chat messages to Anthropic to write the replies. Chat logs are deleted after 90 days.
• Google Analytics counts visits with cookies.
• You can ask to see, correct or delete your information through the contact form, and you can complain to a data protection authority.

What this page covers

This page is about the personal site at sarunasvaitkus.com. It covers the contact form, the AI assistant on this website, Google Analytics, and a few settings kept in your browser. Šarūnas Vaitkus decides how this information is used, which makes him the data controller.

The same page in Lithuanian: Privatumas.

Contact form

The Contact and Message me buttons open a form. It asks for:

• Your name (required)
• Your organisation (you can leave this blank)
• Your email address (required)
• A note about your project (you can leave this blank, up to 2,000 characters)

On the Lithuanian pages the form also asks when you need an answer. That question is optional. If you answer it, the answer is added to the note, and the note is marked as sent from the Lithuanian site.

The assistant has its own short form: your name, your organisation, your email address, and a short note. Name and email are required. The other two can be left blank. If you send that form, the recent chat is sent with it, up to the last 20 messages. The form opened from Contact or Message me does not include the chat.

The form exists so Šarūnas can read what you need and reply.

The form opened from Contact or Message me goes to a Supabase Edge Function called chat, at bmtnfhppzrkztmqzwrhx.supabase.co. The assistant's form goes to a second function, site-chat, in the same project. Either function stores one record in a Postgres table named leads, in the assistant schema of that Supabase project. That record holds your name, organisation, email, note, and the chat history sent with the form. The history is the conversation after the function trims it to the last 20 messages, with each message cut to 2,000 characters. It includes what you typed and the assistant's replies. The form opened from Contact or Message me sends no chat, so that history is empty.

A separate message goes to Šarūnas on Telegram. That message has your name, organisation, email and note, plus only the last four questions you typed. Each of those questions is cut to 300 characters. The assistant's replies are not in the Telegram message.

A separate log records that a contact form was used. That log line does not contain your name or email. It stores a short code calculated from your IP address. The address itself is not stored, and it cannot be recovered from the code.

The database is set to delete these contact records after 12 months. The Telegram message stays in that chat until it is removed there.

AI assistant on this website

Ask my AI assistant opens a chat on the page. Your question and the recent turns of the conversation are sent to the site-chat function in the same Supabase project. The function first searches published material about Šarūnas's work for passages that match your question. That search runs inside Supabase, and no other company sees it. The function then sends the conversation to Anthropic. Anthropic writes the reply with the Claude model claude-haiku-5-5, through api.anthropic.com, unless the function is configured with a different API address. The request also includes the assistant's instructions and published material about Šarūnas's work. Submitting a contact form does not call Anthropic. The name, organisation, email and note from the form are not sent to the model. From you, only the text you type into the chat messages can reach it.

The function stores each question and reply in a table named question_log, with counts of how much text the model read and wrote, and a status. It stores the same kind of short code from your IP address, so it can limit how many messages one visitor sends. It does not store the raw IP address. The database is set to delete these chat logs after 90 days.

This browser also keeps the chat in session storage, under the key sv-assistant-v2, until you close the tab. That copy stays on your device.

Google Analytics

Each page loads Google Analytics 4, measurement ID G-KN31FWTLQ1, from googletagmanager.com. Google uses cookies to recognise a browser and count visits. With this tag those cookies are _ga and _ga_KN31FWTLQ1. The site does not choose its own expiry. Google keeps them for up to two years. The site does not show a cookie banner.

Other storage in your browser

The site's own scripts do not set cookies. They do save a few settings in local storage on your device:

• sv-theme: light, dark, or automatic, from the theme control
• win-bg: whether the window background stays still or moves
• sv-wipe-hint: whether the hint about wiping the window has already been shown

These stay until you clear this site's data in the browser. They are not sent to the server.

Some project pages embed a YouTube video from youtube.com. YouTube can set its own cookies when that video loads. The FOD and safety refresher page embeds a demo from app.7taps.com, which can set cookies of its own when the demo loads.

The typefaces, Open Sans and Oswald, are served from sarunasvaitkus.com itself, so loading them sends nothing to Google. Some older course demos under /demo/ were exported from authoring tools and still load their own fonts from Google when they open.

Why this information is used

• Contact form: to read your request and reply, and to prepare the work if you and Šarūnas agree on a project. The legal basis is taking steps at your request before a contract, and Šarūnas's legitimate interest in answering the messages he receives.
• AI assistant: to answer your questions about Šarūnas's work. The code made from your IP address limits how many messages one visitor can send, so the assistant is not misused. The legal basis is legitimate interest.
• Google Analytics: to count visits and see which pages people read, so the site can be improved. The legal basis is legitimate interest.

The message limit is the only automatic step, and it only pauses the chat. No automatic decision with legal or similar effects is made about you. The information is not sold or used for advertising.

Where the information goes

These companies handle the information for this site:

• Supabase runs the functions and the database for the contact form and the assistant. The database is in Ireland, so contact records and chat logs are stored in the EU.
• Anthropic writes the assistant's replies.
• Telegram carries the message that tells Šarūnas about a new contact form.
• Google runs Google Analytics.

Anthropic, Google and Supabase are companies based in the United States. Telegram's servers are spread across several countries. Some of this information can therefore be processed outside the EU and the UK.

Your rights

Under the GDPR and the UK GDPR you can ask to:

• see the information held about you and get a copy of it
• correct it if it is wrong
• have it deleted
• limit how it is used, or object to its use
• get the information you gave in a format you can pass to someone else

Use the contact form for any of these. Include the email address you used or the approximate date of the chat, so the right records can be found. The form sends your request the same way as any other message, and it does not change the records by itself. You get an answer within one month. Contact records are removed after 12 months, and chat logs after 90 days, whether or not you ask.

You can also complain to a data protection authority: the one in the EU country where you live or work, or where you think the problem happened. In the UK this is the Information Commissioner's Office.

Updated 3 November 2026.