HN Top 10 — June 18, 2026

Midjourney announces "Midjourney Medical," a bold expansion into healthcare imaging. They're building an ultrasonic body scanner that works by submerging users in a pool of water lined with half a million tiny transducer elements, creating detailed 3D body maps in about 60 seconds — nearly 100× faster than traditional MRI. The vision is to place these scanners in "Midjourney Spas" starting in San Francisco in 2027, making frequent body scans as casual as a spa visit, with an ambitious goal of 50,000 scanners worldwide by 2031.

A detailed account of using Claude Code and GPT-5.5 Pro to debug and improve MAME's PowerPC emulation. The AI tools helped fix half a dozen bugs in the PowerPC DRC, VIA emulation, PCI hardware support, and FPU status flag handling — enabling the Apple Pippin, Power Macintosh 6100, and 7200 to boot further than before. The author emphasizes that AI found the bugs but humans wrote and reviewed the actual fixes, warning against unchecked "vibe code" submissions.

DeepSeek has released a vision capability for its chat platform, adding multimodal understanding to its AI assistant. The feature enables users to upload and analyze images directly within the DeepSeek chat interface, expanding the model's utility beyond text-only interactions.

A founder shares real-world experience running local Qwen 3.6 27B on an RTX 6000 Pro (96GB VRAM). Key takeaways: local models excel at privacy-sensitive tasks like analyzing customer telemetry and diagnostic dumps that would be unethical to send to cloud APIs. The model found under-reported licenses generating 4-5× more revenue than billed. However, local models suffer from infinite loops and hallucination risks, especially when quantized — they're a different tool suited for supervised, privacy-first work rather than unattended frontier-level coding.

Epic Games has open-sourced Lore, a next-generation version control system designed for massive scalability with both code and large binary assets. Built on content-addressed storage using Merkle trees and immutable revision chains, Lore supports chunked storage for large files, on-demand hydration, sparse workspaces, and lightweight branching. Available under MIT license with SDKs for C/C++, C#, Rust, Go, Python, and JavaScript — aimed at game dev and entertainment projects that struggle with traditional VCS.

Research from King's College London reveals that hospitals and universities are conducting late-stage drug repurposing trials at less than 10% of pharmaceutical companies' costs. This "hidden" innovation system operates outside the patent framework, finding new uses for existing generic drugs — examples include using cancer drugs to treat blindness and anti-inflammatory drugs for COVID. The barriers to entry are lower because the drugs are already manufactured and well-studied, and motivation comes from clinical need rather than patent profits.

Xe Iaso chronicles the surprising difficulties of achieving reproducible builds when compiling wasm2js to WebAssembly using wasi-sdk. The journey reveals hidden sources of non-determinism: Clang silently calling system wasm-opt from $PATH (different versions produce different output), and Clang's exception handling code generating address-sensitive try_table ordering. Solutions include passing --no-wasm-opt, disabling ASLR with setarch --addr-no-randomize, and maintaining separate SHA-256 checksums per architecture.

An argument for building the next Git forge on an open, interoperable protocol rather than another centralized service. The author advocates for Tangled, built on the AT Protocol, which gives developers the benefits of centralization (single search, unified interface) while keeping data on self-hosted servers. The open-source model and protocol-level interoperability structurally resist the vendor lock-in that's plagued GitHub, letting anyone fork the client while staying compatible with the wider network.

Reports that AMD has silently disabled the memory encryption feature (Secure Encrypted Virtualization) on consumer Ryzen processors through newer AGESA firmware updates, without notifying users. The security feature that protects system memory from physical access attacks has vanished, and AMD engineers have reportedly gone radio silent when pressed about the change. Users may be unaware their systems lost this protection.

The US government has decided against blacklisting DeepSeek despite more than 100 Chinese firms being deemed potential security risks. The decision reflects ongoing debate over how to handle Chinese AI companies in the context of national security concerns, with DeepSeek maintaining a relatively open research posture compared to other firms on the watchlist.