How to make firecracker faster to start Chromium in < 20ms
Kernel Blog guide on speeding up Firecracker to start Chromium in under 20 milliseconds.
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Kernel Blog guide on speeding up Firecracker to start Chromium in under 20 milliseconds.
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Motorola effectively bricked its WiFi routers after the MotoSync+ app, required to set up and manage current devices, stopped working around mid‑May. iOS shows endless login; Android displays a "Server License Expired" message. Without the app, new routers can’t be configured or reset, crippling mesh networks; existing setups may work but cannot be extended. Motorola has given no public explanation; routers were removed from the official store and reviews cite poor support. The issue has sparked widespread frustration on Reddit, Amazon, and App/Play stores.
sem adds semantic, entity-level Git insights: diff, blame, impact, log, and entity lists. It shows changes at the function/class level with rename detection, structural hashing, and word-level highlights; provides per-entity blame; maps dependencies and affected tests; and can trace a specific function’s history. It supports a token-budgeted context for AI prompts and lists path-scoped entities. One binary, no config; install with brew install sem-cli. Commands include sem diff, sem blame, sem impact, sem log, sem entities. AI agents are 2.3x more accurate with sem output.
The article outlines a practical approach to devirtualize Themida and similar VM-based protectors via guided symbolic evaluation. It lifts native instructions into a malleable IR, concretizes control flow, and uses interdependent optimizations—constant promotion and memory modeling, constant folding, dead store elimination, instruction combination, and branch folding—to collapse VM scaffolding. It handles VMEXITs, tracks virtual instruction pointers, rewrites stack pointers, and lowers the IR back to native code with BLARE2, producing a function that is functionally 1:1 with the original. It warns against VM-specific pattern matching and points to a repository for verification.
New U.S. graduates now have higher unemployment than the overall workforce, with the gap at a record 5.6% vs 4.2% in early 2026. The reversal started in 2019, predating AI and COVID, reflecting a longer erosion of the college-employment edge since 2000. About 41% of employed grads are underemployed. Explanations differ: the New York Fed cites remote work as the main driver; Stanford finds AI-exposure in entry-level jobs contributes. Older degree-holders remain fine; a degree still helps but no longer beats the average for new entrants.
The post explains implementing PyTorch custom operations and classes in C++/CUDA, registering them via TORCH_LIBRARY, and using them from Python and C++ inference. It covers a CPU and CUDA kernel for an identity_conv_op, a torch.classes-based IdentityConvClass, and a custom_op registered under my_ops. It shows how to expose a four-layer IdentityModel (native conv, IdentityConvClass, IdentityConv Op, native conv) and how to export with torch.export (using fake abstract classes for tracing) and compile with AOTInductor to model.pt2. It also includes Python run_inference.py and C++ run_inference.cpp for loading and validating the compiled package.
UMP is an application-level, transport-neutral memory protocol for AI agents that standardizes portable, bi-temporal memory across sessions, vendors, and stores. Building on MCP and A2A, it converts scattered memories (notes, exports, databases) into a single, portable memory draft with six operations: recall, remember, revise, forget, get, and optional feedback/subscribe. It uses signed, JSON-based records with DIDs, bi-temporal semantics, and user ownership. It rides existing transports (MCP, HTTP) and provides implementations via core libraries for local files, SQL, Redis, vector stores, and Recall; adapters import AGENTS.md, CLAUDE.md, Obsidian.
A Lambda-hosted ONNX inference issue looked like a leak due to memory growth; early fixes reduced cache size, but memory rose due to load/unload cycles and heap behavior. maxMemoryUsed reports a per-environment high-water mark, not per invoc; thus increases can mislead. Glibc malloc arena hoarding caused persistent RSS; lowering M_MMAP_THRESHOLD from 128K to 32K and disabling ONNX allocator reduced arena hoarding from 188 MB to 4 MB; this cut steady-state RSS from ~625 MB to ~415 MB, with ~40 ms p50 latency increase. Best practices: plot by environment, use mallinfo2, and note that ONNX Runtime may keep models loaded.
ntsc-rs is a free, open-source video effect that accurately emulates analog TV and VHS artifacts. It uses algorithms modelling NTSC transmission and VHS encoding, inspired by composite-video-simulator, zhuker/ntsc, and ntscQT. Written in Rust with multithreading and SIMD, it runs in real time at high resolutions. It fits into workflows as a standalone app, web app, and as a plugin for After Effects, Premiere, and OpenFX-compatible software (DaVinci Resolve, Hitfilm, Vegas). Version 0.9.4 is available to download or try online.
Meta confirmed thousands of Instagram accounts were hijacked via a bug in its AI-assisted account-recovery chatbot, enabling password resets on accounts without two-factor authentication. Hackers could trick the bot into sending a reset link to an email they controlled by providing a non-matching address, bypassing verification. Meta notified at least 20,225 affected users (30 in Maine) and has disabled the chatbot and removed the vulnerable code path. It is investigating what data, if any, was accessed and urged users to reset passwords and re-authenticate.
Patrick Stevens announces WoofWare.PawPrint, a deterministic .NET runtime released to NuGet. PawPrint interprets the .NET 10 BCL by IL-interpretation, shimming only JIT intrinsics and native code; it supports Console.WriteLine, async Main, Task.Run, reflection, and core synchronization. It uses probabilistic concurrency testing to explore thread interleavings and has deterministically identified six standard race conditions in tests. It is not production-ready; the BCL’s native code must be modeled. Future work includes plug-in implementations. The design enables time-travel debugging with a provenance-tracked IL model. LLMs aided development but required hand rewrites; published 2026-06-04.
Pentagon's Defense Intelligence Agency raised Israel's counterintelligence threat level to the highest, “critical,” amid worries Israel is stepping up espionage against the United States to learn the Trump administration’s Middle East deliberations and decisions on the Iran war. A seven-page internal assessment notes Israel's capabilities in human and technical collection at a critical level and cites specific incidents. Israel and the White House deny spying; U.S. officials say the change adds caution but does not suspend daily intelligence sharing amid ongoing Iran tensions.
Paul Lefebvre recounts writing DOSBOS, a BASIC utility for the Atari 800XL to view disk contents and manage files. After weeks of work, his dad printed the documentation on green bar paper to submit to ANALOG magazine, which rejected it with a handwritten note. He explains DOSBOS’s BASIC‑only limitations, its directory/list/save/load operations, and the need to ENTER listings to disk. The post includes the original program listing, a disk image to boot, and reflections on magazine submissions and retro‑computing nostalgia.
Python's Steering Council announces that the experimental CPython JIT must go through a Standards Track PEP to define its long‑term status, commitments, and impact on tooling and redistributors. No new JIT work on main until the PEP is accepted; bug fixes allowed. The PEP should describe maintenance, compatibility with CPython features, measurable goals, and whether the infrastructure supports multiple JIT approaches. A six‑month window is set for submitting and resolving the PEP; if not accepted, JIT code must be removed from main. Community discussion will begin; a working group will be formed and Diego will draft the PEP.
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WordPress.com reports a 429 error due to a minor system issue, asks users to refresh the page, and to contact support if the error persists.
zeroserve is a fast, zero-config HTTPS server that serves a site from a single tarball with hot-reload and no separate config file. An eBPF program is the entire configuration, compiled to native code and run as sandboxed userspace middleware on every request. The tarball is deployed atomically via SIGHUP. Scripts can inspect/modify requests, set headers, perform auth and rate limiting, and reverse-proxy to backends; all I/O uses io_uring. TLS 1.3, HTTP/2, Encrypted Client Hello and SNI. Benchmarks show strong throughput vs nginx/Caddy, sensitive to the preemption timer (2 ms vs 10 ms).
Splash is a three-digit color system in which each digit (0–9) encodes a red, green, and blue channel. Examples: 900 is full red; 000 black; 999 white. It helps avoid decision paralysis by limiting choices. There are 1000 possible colors, and designers can use standard sets or personal themes (e.g., pastel shifts). Conversion to hex can be done by simple math or with a hand-written lookup table. The method is fast, human- and machine-readable, and easily integrated into CSS/SCSS via functions or prebuilt styles.
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