rusty4444

rusty4444 / ha-linked-cards

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Shared storage-backed reusable dashboard card templates for Home Assistant

custom-card dashboard hacs home-assistant lovelace
44
0
89% credibility
Found May 19, 2026 at 45 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
JavaScript
AI Summary

Linked Cards is a custom integration for Home Assistant that solves the problem of duplicated dashboard cards. Instead of copying the same card (like a room summary or navigation grid) across multiple dashboards, you define it once as a 'master template' with placeholders for customizable values. You then place lightweight 'linked instances' anywhere, filling in the specific values for each location. When you update the master template, every linked instance updates automatically. The project includes a visual manager for creating and editing templates, supports both inline and popup display modes, and stores all templates securely within your local Home Assistant system. It's designed for users who maintain several dashboards and want consistency without the tedium of manual updates.

How It Works

1
🏠 You have multiple Home Assistant dashboards

You check your wall tablet, your phone, and your admin dashboard - and notice the same room card copied in five different places.

2
😓 Editing the same card becomes exhausting

When you change a light entity or add a new sensor, you have to manually update every single copy across all your dashboards.

3
✨ You discover Linked Cards

Someone in the Home Assistant community mentions a tool that lets you define a card once and reuse it everywhere - with automatic updates.

4
📦 You install it through HACS

A few clicks in the Home Assistant store, a restart, and the Linked Cards integration appears in your settings.

5
You create your first template
📝
Or use source-dashboard mode

You build cards visually with Home Assistant's editor on one dashboard, then reference them from everywhere else.

6
🔗 You place linked instances on your dashboards

Using the visual editor, you add linked cards and simply fill in the variables - Living Room, Bedroom, Kitchen - without touching the card structure.

🎉 Everything updates in one place

Change the master template once, and every linked instance across every dashboard refreshes automatically. No more copy-paste nightmares.

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AI-Generated Review

What is ha-linked-cards?

This is a Home Assistant integration that lets you define master card templates once and reuse them across multiple dashboards. Instead of copying the same card YAML in multiple places, you create a template and place lightweight linked instances anywhere. When you update the master, all instances reflect the change after refresh. It combines a Python backend integration with JavaScript frontend cards, storing templates locally under Home Assistant's storage system.

Why is it gaining traction?

Home Assistant users maintaining wall tablets, phones, admin dashboards, energy views, and guest views repeatedly copy the same card configuration. This project bridges the gap between the visual dashboard editor and YAML-only reuse tools. It offers a visual editor for linked-card instances with template picker and variable overrides, plus a source-dashboard mode that lets you maintain shared cards on a normal dashboard and reuse them elsewhere. Live template updates mean saved or deleted templates automatically re-render affected instances without waiting for a full dashboard refresh. A REST API and export/import functionality round out the feature set.

Who should use this?

Home Assistant users managing multiple dashboards who are tired of duplicating card YAML across views. Anyone who wants the visual editor but needs reusable card patterns. Users running Global-cards-style workflows with Bubble Card pop-ups or shared headers will find the source-dashboard mode particularly useful. If you maintain room-specific dashboards with similar device tiles, this eliminates the copy-paste maintenance burden.

Verdict

This fills a genuine gap in the Home Assistant ecosystem and the implementation is thoughtful, but the 44 stars reflect early-stage maturity. The documentation is solid and the feature set is complete for v0.1.5, but the credibility score of 0.9% signals limited community validation. Worth trying if you manage multiple dashboards, but monitor for community feedback before depending on it for critical infrastructure.

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