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WeAreDevelopers LIVE • Apr 18, 2023

petite-vue - Progressively enhancing every application?

Alexander Lichter

Need modern interactivity in a legacy monolith but can't justify an expensive SPA rewrite? Learn how to sprinkle 6kb reactive islands into server-rendered HTML using petite-vue.

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#1 about 4 min

The reality of single-page applications versus legacy monoliths

Constraints like budget and lost domain knowledge challenge the migration of legacy server-rendered applications to modern frontends.

#2 about 6 min

Implementing progressive enhancement on existing backends

Examining lightweight alternatives allows developers to add interactivity to server-rendered markup without entirely replacing the existing infrastructure.

#3 about 2 min

Defining petite-vue and its architectural differences

The creation of an ultra-lightweight frontend layer relies on walking the existing DOM instead of employing a heavy virtual tree.

#4 about 3 min

Migrating components using the v-scope state directive

Declaring component state directly within HTML attributes allows rapid logic initialization without imposing complex external build steps.

#5 about 4 min

Manual logic initialization and managing global root scopes

Selectively mounting isolated capabilities to specific element identifiers keeps the vast majority of previously generated backend content untouched.

#6 about 2 min

Replicating computed properties via standard getter functions

Calculating dynamic derived data is achieved naturally within the reactivity system by invoking standard javascript getter methods.

#7 about 2 min

Hooking into element lifecycles without virtual DOM events

Developers can execute custom actions by listening for mounting and unmounting events directly on standardized markup elements.

#8 about 3 min

Triggering asynchronous side effects with the v-effect directive

Wrapping data fetching routines inside reactive boundaries forces the interface to automatically re-evaluate behavior whenever internal variable dependencies shift.

#9 about 4 min

Constructing reusable logic blocks and native HTML templates

Leveraging standalone factory functions alongside browser-native wrapper tags removes markup duplication across repetitive structural interface instances.

#10 about 5 min

Evaluating framework limitations and competing lightweight alternatives

Understanding architectural boundaries and assessing direct competitors clarifies when localized frameworks outperform monolithic single-page toolchains.

#11 about 6 min

Live coding a tiny interactive component inside HTML

Structuring an explicit toggle state overlay sequentially within markup establishes the precise interaction flow between rendering and user input.

#12 about 9 min

Question and answer session on syntax and compatibility

Exploring specific syntax compatibility and older browser limitations guarantees long-term stability when attempting deployments targeting legacy environments.

Matching moments

1:28 min

Introduction to the speaker and frontend projects

Abdelrahman Awad Abdelrahman Awad · World Congress 2025

2:59 min

Comparing Vue to React and Angular

Rob Richardson · LIVE

2:51 min

Democratizing cross-platform development with alternative JavaScript frameworks

Xuan Huang Xuan Huang · World Congress 2025

5:59 min

Integrating web components across popular javascript frameworks

Rowdy Rabouw Rowdy Rabouw · World Congress 2022

3:27 min

Transitioning progressive framework features to the newer version

Daniel Roe · JS Congress

3:48 min

Adopting progressive enhancement workflows to prevent frontend bloat

Chris Heilmann +2 · LIVE

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September 24, 2026 · 17:30–18:00

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Senior Flutter Developer

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Stage 2

Build Fast, Deploy Faster: Cross Platform AI development in 2026

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CEO & Co-Founder of Expo

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Open session

World Congress 2026 North America

September 24, 2026 · 14:50–15:20

Stage 6

Beyond the Vibe: Specs, Adversarial Review, and Engineering AI Development that Scales and Ships

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Principal, App Modernization & Development, Cloud Engineering & Data Analytics | Anthropic Alliance CTO

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