Best new productivity, AI and creator resources: day 26

Best Productivity Resources is twenty-six days old today. This roundup covers the strongest recent additions for creators, developers, founders and people building with AI. Every resource was reviewed by hand and links directly to its original website or repository.

1. Compositor

Compositor is a free, open-source image editor for Mac built around practical compositing and post-production. It includes layers, masks, blend modes, adjustment layers, filters, background removal, healing, cloning, liquify and other familiar editing tools. Link: https://robbietilton.com/compositor

2. ServerKit

ServerKit is a lightweight, open-source control panel for deploying and managing web apps, databases and containers on a VPS. It handles Git deployments, automatic reverse-proxy setup, SSL, monitoring and atomic updates without requiring a Kubernetes-sized setup. Link: https://github.com/jhd3197/ServerKit

3. Kitaru

Kitaru turns recorded AI-agent traces into replayable evaluations. It can import sessions from popular observability tools, replay them against a new model, prompt or code change, and reuse recorded tool responses to create more faithful comparisons. Link: https://github.com/zenml-io/kitaru

4. ASO Skills

ASO Skills is an open-source collection for app-store growth work. Its skills cover audits, keyword research, metadata, competitors, localization, screenshots, reviews, launch planning, Apple Search Ads, retention, monetization and paywall optimization. Link: https://github.com/appeeky/aso-skills

5. Startup Skill

Startup Skill gives Claude Code a structured workflow for moving from an idea to market research, customer discovery, positioning, competitive analysis, financial thinking, validation and investor-ready pitches. Link: https://github.com/ferdinandobons/startup-skill

6. FFmpeg Skill

FFmpeg Skill lets compatible coding agents handle local video and audio editing through clear reusable instructions. It is useful for trimming, converting, combining and processing media without uploading files to a cloud service or adding an API key. Link: https://github.com/kajisho5/ffmpeg-skill

7. Superstreamer

Superstreamer is an open-source video streaming toolkit covering ingest, transcoding, packaging, storage and adaptive HLS playback. It supports modern codecs, subtitles, DRM-ready packaging and server-side ad insertion through a developer-friendly API. Link: https://github.com/superstreamerapp/superstreamer

8. 1000UserGuide

1000UserGuide collects more than 300 places where indie developers and entrepreneurs can promote a product and find early users. The list spans international directories, communities, Reddit, Chinese platforms and AI navigation sites. Link: https://github.com/naxiaoduo/1000userguide

9. Agent Skills Workflow Template

Michael Shimeles' Agent Skills Workflow Template is a practical collection of AGENTS.md patterns and reusable skills for Claude Code, Cursor and Codex. It helps turn informal agent usage into a repeatable project workflow. Link: https://github.com/michaelshimeles/skills

10. Aliens Eye

Aliens Eye is an open-source OSINT scanner that checks a username across more than 840 platforms. It combines multiple detection signals and can be used as a Python package or command-line tool. Link: https://github.com/arxhr007/Aliens_eye

More recent additions

Other useful additions include Stanley for planning and publishing social content, vflow for searchable AI video prompts, Reelfolio for portfolio showreels, Fontshare for free typefaces, Hugeicons for design and code icons, remove.bg for background removal, and fresh mockup libraries from LS Graphics, Wannathis and Mockup Tree.

Where to start

Pick the resource closest to today's task: Compositor for image work, Kitaru for evaluating an agent, ASO Skills for app growth, Startup Skill for validating an idea, ServerKit for self-hosting or 1000UserGuide when you need your first users. Browse every addition at https://bestproductivityresources.com/directory