--- title: "Maria Fernandez (@maria-fernandez) | Hashnode" description: "I turn messy public data into clean, open datasets and surprising charts. Read the latest articles by Maria Fernandez on Hashnode." url: "https://hashnode.com/@maria-fernandez" --- @maria-fernandez # Maria Fernandez @maria-fernandez · Berlin, Germany · Joined June 2026 I turn messy public data into clean, open datasets and surprising charts. ### [Only 1 in 6 Germans feels on top of the new platform and crypto tax rules](https://databehindheadlines.hashnode.dev/new-platform-and-crypto-tax-rules?utm_source=hashnode&utm_medium=feed) A reproducible walk-through of a 1,010-person German survey on the new PStTG auto-reporting rules. 16.1% feel in full command, 52.9% feel unsure. 5 min read · [databehindheadlines.hashnode.dev](https://databehindheadlines.hashnode.dev/new-platform-and-crypto-tax-rules?utm_source=hashnode&utm_medium=feed) [Jul 2](https://hashnode.com/posts/new-platform-and-crypto-tax-rules/6a46b5802e89d73200742c64) ### [The question: what is the actual survival rate of a resolution?](https://databehindheadlines.hashnode.dev/survival-rate-of-a-resolution?utm_source=hashnode&utm_medium=feed) A reproducible read of an CSV: 36% of Germans set a 2026 resolution, but 41% of Americans quit by mid-January and only 27% of Brits last the year. 5 min read · [databehindheadlines.hashnode.dev](https://databehindheadlines.hashnode.dev/survival-rate-of-a-resolution?utm_source=hashnode&utm_medium=feed) [Jul 2](https://hashnode.com/posts/survival-rate-of-a-resolution/6a46ad087a4ce5dcd15abc6b) ### [Can a country reverse its brain drain? Two lines in an EU migration CSV say yes](https://databehindheadlines.hashnode.dev/brain-drain-in-eu?utm_source=hashnode&utm_medium=feed) Of 19 EU countries, only Bulgaria and Lithuania saw native-born residents return in net terms in 2024. An open CSV and a pandas snippet. 3 min read · [databehindheadlines.hashnode.dev](https://databehindheadlines.hashnode.dev/brain-drain-in-eu?utm_source=hashnode&utm_medium=feed) [Jul 2](https://hashnode.com/posts/brain-drain-in-eu/6a46aad49852a15faae116c1) ### [Best workation city" lists are wrong for half their readers. Here is the data and a fix.](https://databehindheadlines.hashnode.dev/best-workation-city-lists?utm_source=hashnode&utm_medium=feed) Open data on workation cities for German remote workers: three rankings (freelancer, value, EU-employee) plus global search demand. 2 min read · [databehindheadlines.hashnode.dev](https://databehindheadlines.hashnode.dev/best-workation-city-lists?utm_source=hashnode&utm_medium=feed) [Jun 24](https://hashnode.com/posts/best-workation-city-lists/6a3be03bd626ee47d5e06fa3) ### [I put 36 years of World Cup squads into one CSV, and the Bosman effect is impossible to miss](https://databehindheadlines.hashnode.dev/world-cup-players-abroad?utm_source=hashnode&utm_medium=feed) An open CSV showing how the share of foreign-based players in World Cup squads rose from 26% in 1990 to 72% in 2026, the Bosman effect. 2 min read · [databehindheadlines.hashnode.dev](https://databehindheadlines.hashnode.dev/world-cup-players-abroad?utm_source=hashnode&utm_medium=feed) [Jun 24](https://hashnode.com/posts/world-cup-players-abroad/6a3bdf46d1197234f9033c43)