PeepNote adds Magic Pen to let users draw around screen content and ask AI about it

·18 views

The developer of PeepNote, a desktop app for saving and retrieving useful LLM answers, has added a feature called Magic Pen. Pressing Alt+S lets users draw a selection around part of their screen, which is sent to a configured AI and shown in a movable window with a streaming response. Users can continue the conversation by typing follow-up questions or selecting additional screen areas, and can save the result as a Markdown note in a chosen workspace. Magic Pen works with a configured AI API or signed-in CLI tools such as Codex, Claude Code, Gemini CLI, or Qwen Code, with mode and model selectable in Settings. Selected screen content goes to the chosen AI service, while saved notes remain on the user's computer; PeepNote is free, open source, and available for Windows and Linux.

Read the full story at DEV Community

This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)

Hosted LLM Providers Show Up to 40% Throughput Gap on Identical Models

A DEV Community deep dive examines why the same open-weights model can deliver very different speeds depending on the provider hosting it. Citing NeuBench speed tests, the article reports token throughput differences of up to 40% across major hosted endpoints. It explains that inference runs in two phases, a compute-bound prefill step that sets time to first token and a memory-bandwidth-bound decoding step that sets throughput. The variance is attributed to choices such as the inference engine, hardware tier and interconnect, and KV cache quantization or offloading. The piece closes with a Python example that streams completions to measure TTFT and end-to-end throughput so engineers can monitor providers in production.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

EU CRA Requires 24h and 72h Vulnerability Reporting; Small Teams Need a Runbook

Since 11 September 2026, manufacturers of products with digital elements sold in the EU must report actively exploited vulnerabilities, with an early warning due within 24 hours and a fuller notification within 72 hours. The article presents a practical runbook for small teams, which an engineering author frames as guidance rather than legal advice. Key preparation steps include defining who decides a vulnerability is actively exploited, recording the moment of awareness, and tracking the reporting deadlines in an issue. It also recommends preparing report templates so submissions can be made quickly through the ENISA-established single reporting platform. The author stresses that teams should confirm their scope and obligations with counsel before relying on the process.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Linux file descriptor limits and socket leaks: checking and tuning ulimit and file-max

The article explains how Linux caps file descriptors at two levels: per-process soft and hard limits set via ulimit and limits.conf, and a system-wide ceiling stored in /proc/sys/fs/file-max. It shows commands to inspect these limits and to count a running process's open descriptors, which helps reveal socket leaks. A small Go program is used to demonstrate a leak and compare it against a clean version that closes connections properly. The piece also presents cleanup patterns in Go, Java, and Python, along with ways to raise the limit permanently through limits.conf, systemd service files, or at application startup.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Zero-PII Browser Tax Engine Models 2026 NY, NJ, PA and NUA Rules

East Corp Capital describes a client-side tax and mortgage calculation engine that runs entirely in the user's browser, avoiding the collection of personal data such as email, phone numbers, or Social Security numbers. The article explains non-resident real estate withholding rules at closing in New York, where 10.90% of net gain is withheld and nothing is due on a loss, and New Jersey, where the greater of 2% of gross sales price or 10.75% of net gain is held in escrow. It also outlines Pennsylvania's inheritance tax tiers and the 5% discount for paying within 90 days of death, which the author frames as an annualized return of about 21.1%. Finally, the piece covers how Net Unrealized Appreciation rules can change the tax treatment of highly appreciated company stock held in a 401(k) at retirement.

0 comments Read more at DEV Community