Archive

Older material, preserved rather than discarded. Everything here is historical — labeled gently, never rewritten to sound current.

0xFF Consulting (ffconsulting.org) §

From roughly 2018–2021 I ran an independent security consulting practice in Sweden under the name 0xFF Consulting. The pitch, in my own words at the time:

I'm an experienced software engineer with passion for security. I help companies, that don't have a budget or need for a full-time security lead, to protect data, IP and money.

Some organizations introduce security theater: they sacrifice convenience in the name of "security". This is really sad, because these practices don't make anything more secure. I believe, that right security practices don't have to impede your work process or make UX of your product worse.

The practice is closed. The old site is still reachable at ffconsulting.org and holds two of my Ethereum research posts alongside the consulting pages. The LinkedIn article Security Lead As A Service (Apr 2020) documents the same chapter. If ffconsulting.org is retired, its blog posts are mirrored under Writing.

Fleximind §

Earlier still, I was a founder of Fleximind, a studio building edutainment games. Little of it remains online; recorded here so the chapter isn't lost entirely.

The old personal site §

Before this redesign, this site was a small collection of utility pages and experiments, preserved here for link continuity.

Medium (2018–2020) §

All seven public posts were mirrored into Writing on 2026-08-22 with original dates, wording, and canonical links back to Medium. Figures are served locally from this site (/static/img/) — no third-party requests when reading. Two dead Medium-internal redirect links (removed from the mirrors) were the only deletions; everything else is verbatim apart from four documented typo fixes.