Adding a Custom MCP Server to Claude and ChatGPT

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Simon Willison explains how to add a custom MCP (Model Context Protocol) server to Claude and ChatGPT, enabling these chat interfaces to query external data sources like his blog’s database. In Claude, adding an MCP is straightforward via the Connectors menu, while in ChatGPT it requires enabling Developer mode, adding the MCP as a plugin without authentication, and manually activating it for each chat session. However, MCP plugins are not supported in ChatGPT’s Advanced Voice mode.

https://til.simonwillison.net/llms/mcp-in-claude-and-chatgpt

Super Productivity

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Super Productivity is a free, open-source task manager designed to support deep work with features like time tracking, Pomodoro timers, customizable boards, and integrations with tools like GitHub, Jira, and calendars. It emphasizes privacy by operating 100% offline with local-first data storage and no telemetry, and it offers extensive customization through plugins and keyboard shortcuts for efficient workflows. Tailored for various professionals including developers and freelancers, it provides detailed work analytics, flexible scheduling, and tools to overcome procrastination, all backed by an active open-source community.

https://super-productivity.com/

AARomanov1985/Audio-Cassette-Simulation: This Project Simulates Cassette Tape Audio Profiles Using Ffmpeg

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The Audio-Cassette-Simulation project uses ffmpeg to replicate the audio characteristics of various cassette tapes by applying effects like tape noise, wow and flutter pitch modulation, bandwidth limits, and equalizer adjustments. It provides scripts to convert local audio files or record live streams into cassette-simulated outputs, organized by different tape profiles such as BASF LH Extra C90, Maxell UD C90, and vintage Sony and TDK tapes. The project is implemented in shell scripts and released under the MIT license.

https://github.com/AARomanov1985/Audio-Cassette-Simulation

Inoreader Q2 Highlights: More Control, Less Friction

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In the second quarter of 2026, Inoreader introduced several updates aimed at enhancing user control and efficiency, including more flexible filter quotas, customizable AI platform choices for Intelligence features, and shared feature pools for Teams to simplify resource management. The interface was refreshed with a cleaner top bar for quicker navigation, and new security features like passkey sign-in were added to improve account safety and ease of access. These improvements collectively make Inoreader more adaptable to users' workflows while enhancing security and collaboration.

https://www.inoreader.com/blog/2026/07/inoreader-q2-highlights-more-control-less-friction.html

Obsidian AI Second Brain: The Free Self-Organizing Plugin

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Agrici Daniel developed claude-obsidian, a free Claude Code plugin that transforms Obsidian into a self-organizing AI second brain by automatically reading sources, writing linked Markdown notes, and maintaining an index without manual filing. Built on Andrej Karpathy's LLM Wiki pattern, it avoids vector databases and proprietary formats, offering an open-source, data-owned alternative that saves time by compounding knowledge across 15 integrated skills. The latest v1.9 release enhances retrieval accuracy, collaboration safety, and introduces a thinking framework, enabling users to efficiently build and maintain richly connected knowledge bases within Obsidian.

https://agricidaniel.com/blog/claude-obsidian-ai-second-brain

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