🔒 Why owned hardware matters for EU data privacy
Strict privacy demands drove Fastmail to build bare-metal infrastructure in Amsterdam
August 09, 2026
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The Deep End
Fastmail Expands Data Privacy Choices with Bare-Metal EU Infrastructure
Strict privacy demands drove Fastmail to build bare-metal infrastructure in Amsterdam. Account owners can now host primary email data inside the EU without paying extra subscription fees. This analysis details Fastmail's hybrid replication architecture, hardware ownership model, and the actual limits of regional data sovereignty.
Fastmail launched a dedicated data region on co-located hardware in Amsterdam. Customers can now store primary email data directly in the European Union. Hardware control eliminates reliance on third-party cloud vendor promises. Migration tools allow simple one-click transfers between continents without service downtime.
Some components remain globally distributed due to cross-region availability requirements. System logs and emergency backup copies stay on US servers for now. Australian legal jurisdiction still applies across all accounts globally. Review your compliance rules before triggering the account region transfer.
Key Takeaways:
- Owned hardware in Amsterdam gives EU users local primary data storage and lower latency.
- Cross-region backups and consolidated logs mean complete EU isolation remains impossible today.
- Audit your regional compliance needs before selecting the EU data storage region.
The Periphery
How Human Intuition and AI Solved the Magic Hexagon Conjecture
Combinatorial complexity long restricted known abnormal magic hexagons to order nine. Imposing antisymmetry constraints slashed the search space before advanced AI models derived a general construction. The hybrid human-AI process proved magic hexagons exist for every order greater than three. This analysis details how domain-specific symmetry framing enables LLMs to solve stubborn mathematical conjectures.
Mathematicians long believed magic hexagons beyond order nine were impossibly rare. A developer combined human symmetry insights with custom simulated annealing across 24 CPU cores. This approach generated magic hexagon solutions up to order 21 within days. Framing the search space correctly matters far more than throwing raw compute at unconstrained problems.
Key Takeaways:
- Antisymmetry constraints dramatically reduce search space size by forcing antipodal cell values to cancel out.
- Custom simulated annealing beat generic solvers, discovering magic hexagons up to order 21 within days.
- Apply domain-specific symmetry constraints to narrow search spaces before running automated optimization algorithms.
Why Link Rot Endangers Web Architecture Over Decade Timeframes
Link rot quietly destroys web permanence over long time horizons. In 2011, web experts wagered whether a single URL could survive eleven years. Poor site maintenance drives most domain decay, making permanent links rare. This analysis explores how deliberate engineering decisions and 301 redirects preserve digital history against internet entropy.
Web links decay rapidly as domain ownership and site architectures change. Developer Jeremy Keith bet Matthew Haughey that a specific URL would break within eleven years. Tim Berners-Lee famously declared cool URIs never change back in 1999. Most web infrastructure fails to maintain basic redirect rules over decades.
Key Takeaways:
- Link rot claims most web content because domain renewals and backend frameworks frequently shift.
- Proper 301 redirect chains prevent broken bookmarks -- careful mapping maintains incoming traffic over decades.
- Implement permanent 301 redirects today to preserve legacy URL structures during platform migrations.
How Pure Assembly Brought Mac Features and Multitasking to 1980s PCs
Developer enthusiasm spawned os8088, a standalone graphical operating system running on ancient 8086 chips. Pure assembly language capped memory usage at 256KB -- unlocking real preemptive multitasking that original 1984 Mac systems lacked. This technical breakdown explores how radical constraints yield high efficiency without relying on underlying operating systems or modern abstraction layers.
Os8088 brings a full Macintosh-style interface directly to 8086 hardware. The tiny 78-kilobyte kernel boots straight from floppy disks into a color graphical desktop. It manages overlapping windows and twelve concurrent tasks without relying on MS-DOS underneath. Modern software wastes gigabytes, but lean assembly code still delivers surprising capability.
Key Takeaways:
- Bypassing MS-DOS entirely allowed the tiny kernel to fit within 78 kilobytes of space.
- Shared real-mode memory eliminates protection layers -- driving fast context switches across twelve tasks.
- Evaluate low-level system constraints before adding modern hardware layers or complex runtime dependencies.
How Shopify Replaced Redis with MySQL for Scalable High-Throughput Inventory Reservations
Managing separate database systems creates consistency risks during high-concurrency checkouts. Shopify eliminated cross-system sync failures by migrating inventory reservations from Redis to MySQL. Using MySQL 8's SKIP LOCKED feature, they sustained $5.1 million in peak sales per minute during Black Friday 2025. This breakdown explains how row-level locking and transaction cleanup removed database bottlenecks at scale.
Shopify moved inventory reservations from Redis to MySQL to enforce ACID guarantees. The old Redis setup created split-brain errors between reservations and the primary MySQL ledger. MySQL 8's SKIP LOCKED feature allowed concurrent transactions without locking the entire inventory table. They capped available row pools at 1,000 units per item to keep query scans fast.
Key Takeaways:
- MySQL's SKIP LOCKED eliminates Redis sync errors by keeping reservations within atomic ledger transactions.
- Checkout cleanup cut database reads 50% -- unblocking connection pool exhaustion under heavy traffic.
- Tag database queries with application metadata to identify hidden connection leaks in proxy logs.
The Firehose
Software & System Adaptation
- How Two-Pass Dithering Blends Data and Images into Custom QR Codes
- How Engineers Ported 1990 Microsoft Word to Native 64-Bit Windows