Document eww expression syntax, operators, functions, and data access patterns.
npx skills add https://github.com/milojarow/dotfiles --skill eww-expressions
Please help me install this Agent Skill. Skill: eww-expressions Source: https://github.com/milojarow/dotfiles/tree/main/.claude/skills/eww-expressions Command: npx skills add https://github.com/milojarow/dotfiles --skill eww-expressions
This Skill helps users write and debug expressions for the eww widget system, enabling dynamic and interactive user interfaces.
${} for string interpolation and {} for attribute expressions.round(), formattime(), and jq().Use the eww-expressions skill to understand how to display the current time formatted as HH:MM in a label.
High-intent search queries and answers about installing and using this skill.
Eww expressions use `${}` for string interpolation and `{}` for attribute expressions to create dynamic widget interfaces. You can combine these syntaxes with operators and functions to build custom status bars and interactive elements.
Eww scripting supports arithmetic, boolean, ternary, elvis, and safe access operators, alongside essential functions like `round()`, `formattime()`, and `jq()` for data manipulation. These tools allow you to apply logic and format data directly within your widget definitions.
You can access variables, object fields, array elements, and special `EWW_*` magic variables to retrieve system data in eww. This data access pattern allows your widgets to display real-time information like CPU usage or battery levels.
Eww expressions often fail due to syntax mistakes like confusing `${}` string interpolation with `{}` attribute expressions, or improper use of safe access operators. Reviewing common mistakes and operator logic helps debug and resolve these widget rendering issues.
Yes, you can create a custom status bar widget in eww to display the current time, CPU usage, and battery level. By using functions like `formattime()` and accessing magic variables, you can apply dynamic styling based on live system conditions.
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