Free digital passport photo in Finland
Make a free digital passport photo in Finland: take your own picture, edit to official specs, export 500×653, and upload to lupakuvienvastaanotto.fi.
Harry talks about XYZ
Hi there! This is my blog where I share my thoughts on Information Technology and other XYZ topics. I'd love to hear from you, so please leave a comment or say hello.
Send BTC from offline wallet
Learn how to send Bitcoin from an offline (air-gapped) wallet using Coinb.in: create an unsigned TX online, sign offline, verify, then broadcast securely.
Creating a secure offline BTC wallet
Learn how to generate an offline Bitcoin wallet in an offline Windows VM, split your private key into 2-of-3 parts, and store backups safely in cloud drives.
Deploy high-availability Stalwart for production
Deploy a free, HAStalwart mail server cluster. A step-by-step guide using Oracle Cloud, Upstash, and CockroachDB for redundant self-hosted email.
Discover Finland - The pure beauty of northern Europe
Explore Finland, the happiest country in the world, from vibrant Helsinki and magical Lapland to serene Lake Saimaa, complete with essential travel tips.