#1
Leantime is a goals focused project management system for non-project managers. Building with ADHD, Autism, and dyslexia in mind.
10K starsJun 14, 2026 pushproductivity-automationPHPCalendar
$ npx skills add Leantime/leantimeAlternatives
Calendar alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Calendar
📆 Calendar app for Nextcloud
96
Quality
88
Trust
1.1K
Stars
#2
Task manager with Todoist, Nextcloud & CalDAV support designed for GNOME
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$ npx skills add alainm23/planify#3
Ultimate calendar for your React app.
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$ npx skills add wa0x6e/cal-heatmap#5
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$ npx skills add resend/react-email#8
A fully open source & end-to-end encrypted note taking alternative to Evernote.
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$ npx skills add streetwriters/notesnook#9
:mag: Quick file search & app launcher for Windows with community-made plugins
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$ npx skills add Flow-Launcher/Flow.Launcher#10
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$ npx skills add alyssaxuu/screenity#11
Prometheus Alertmanager
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$ npx skills add prometheus/alertmanager#12
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
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$ npx skills add Foundry376/Mailspring#13
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$ npx skills add mjmlio/mjml#14
A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail
11K starsJun 9, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add maillab/cloud-mail#15
✉️ Send e-mails with Node.JS – easy as cake!
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$ npx skills add nodemailer/nodemailer#16
A self-contained JavaScript wiki for the browser, Node.js, AWS Lambda etc.
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$ npx skills add TiddlyWiki/TiddlyWiki5How to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Calendar if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.