Laravel Livewire Kanban Laravel Package

Technical Evaluation

Architecture fit

• The package is a server-rendered Laravel 13 / Livewire 4 Kanban component set. This release materially changes its architectural posture in two ways:
  • Persistence: an optional Eloquent trait, model definitions and an explicit source registry let boards read from host domain models (per-board, multi-source) instead of package-owned storage. This is the more significant change for us — it moves the package from "self-contained widget" toward "view layer over our data," which is where enterprise value sits, but also where coupling and review burden sit.
  • Presentation: the independent visual palette is replaced by DaisyUI 5.7.50 components and host theme tokens (Tailwind CSS 4.3.3). The package now inherits our design system rather than shipping its own. Good for brand consistency; it makes our Tailwind/DaisyUI upgrade cadence a hard dependency of this package.
• Net: better fit for a host app with an existing design system and existing domain models; worse fit if we wanted an isolated, style-independent drop-in.

Integration feasibility

• Feasible but not a drop-in. The work is concentrated in the asset pipeline and in published Blade overrides, not in PHP.
• Two mutually exclusive CSS paths must be chosen deliberately:
  • Host already on DaisyUI: import resources/css/kanban.css (includes package view source detection). Do not also load the standalone bundle.
  • Host not on DaisyUI: may use resources/dist/kanban.css, which bundles Tailwind/DaisyUI and a global reset — that reset can affect the rest of the page and needs visual regression before shipping.
• Published Blade overrides must be re-reviewed for DaisyUI classes while preserving behavior hooks. Filters and appearance controls now live behind disclosure panels — a UI/UX and test-script change, not just a CSS change.
• No package database migration required, which keeps the rollout reversible.

Technical risk

• Theme contract break: inherited system mode no longer emits data-theme="system"; consumers must target data-kb-theme="system". Anything (tests, Cypress/Playwright selectors, host CSS, analytics) keyed to the old attribute breaks silently with a wrong-theme symptom, not an error.
• Cascade/reset leakage from the standalone bundle or from double-loading both CSS artifacts.
• Platform floors: PHP 8.3+, Laravel 13, Livewire 4 are required; Laravel 14 is explicitly unsupported. This is a narrow, leading-edge support window — we inherit the risk of being early on Laravel 13/Livewire 4 in production.
• Data-layer risk (new surface): scoped multi-source reads, authenticated keyset cursors, transactional model actions, deduplication/recovery, numeric ranks with local rebalancing, version checks and WIP enforcement. Correctness here is concurrency-sensitive and is validated by a small portability suite (3 tests / 9 assertions each on MariaDB and PostgreSQL), not by scale or soak testing.
• Accessibility: dialog focus containment/return, inert background, Escape handling and touch target sizing are improvements, but the release explicitly is not a WCAG conformance certification, with physical-device and full screen-reader testing not completed. If accessibility is a contractual or regulatory requirement, this is an open risk, not a closed item.
• Verification gaps: browser evidence is Microsoft Edge only (13 scenarios). PHP suite is 221 tests / 794 assertions. No evidence cited for SQLite (relevant to dev/CI), MySQL proper, Safari, Firefox, or Chrome.

Key questions

1. Is Laravel 13 / Livewire 4 already our production baseline, or does adopting this force an early platform upgrade? What is the package's support window for Laravel 14?
2. Which CSS path do we take, and who owns the global-reset blast radius review?
3. Is SQLite supported for local/CI parity, or must CI move to MariaDB/PostgreSQL?
4. What are the multi-tenant isolation guarantees for the source registry and keyset cursors, and how are cursor signing keys provisioned and rotated?
5. What are the concurrency semantics of "numeric ranks with local rebalancing" under simultaneous drags, and what is the write amplification at our expected board size?
6. What is the support policy for the 31 design-review findings — which are blocking, which are accepted debt?
7. Does any part of our product need WCAG conformance claims that this release cannot currently substantiate?

Integration Approach

Stack fit

• Requires PHP 8.3+, Laravel 13, Livewire 4. Frontend contract is Tailwind CSS 4.3.3 + DaisyUI 5.7.50 with default DaisyUI config and an empty class prefix — we must not run a prefixed DaisyUI config, or the package classes will not resolve.
• Fits a Blade/Livewire app cleanly. Poor fit for an Inertia/Vue/React SPA frontend or a non-Tailwind design system, where the standalone bundle plus global reset is the only path and carries the highest styling risk.

Migration path

1. Branch spike: composer require the new version, load one board in a non-production environment.
2. Decide CSS strategy (host DaisyUI import vs standalone bundle) and remove the unused artifact so exactly one is loaded.
3. Grep the codebase, tests and e2e selectors for data-theme="system" and migrate to data-kb-theme="system".
4. Diff and re-review published Blade overrides: keep behavior hooks, adopt DaisyUI classes, re-verify disclosure panels for filters and appearance.
5. Visual regression across light/dark/system and across host pages that share the stylesheet.
6. Only then opt into the Eloquent trait / source registry on a single board.

Compatibility

• No package DB migration; upgrade is code and asset only, so rollback is a revert.
• Adapter portability is evidenced on MariaDB and PostgreSQL. MySQL and SQLite are not cited — treat as unverified until we test.
• No Laravel 14 support; plan upgrades around the package's release cadence.
• Existing factory/provider/handler integration and stable behavior selectors are preserved, which lowers the cost of our existing test suite migration.

Sequencing

• Phase 0 (spike, ~2-3 days): install, one board, confirm CSS path decision and theme-attribute break.
• Phase 1 (presentation, ~1 week): CSS migration, override remediation, visual regression, disclosure-panel test-script updates.
• Phase 2 (accessibility, ~3-5 days): keyboard/focus/inert review; decide whether to accept the stated conformance gap or commission device/screen-reader testing. Do this before, not after, the data work.
• Phase 3 (single-board Eloquent adapter, ~1 week): trait + definitions + registry for one board; validate scoping and read paths.
• Phase 4 (multi-source and actions, ~1-2 weeks): keyset cursors, transactional actions, dedup/recovery, WIP enforcement, bulk atomic/partial behavior, metrics.
• Phase 5 (calendar): defer until the adapter contract is verified against a real Calendar installation — it is documented, not tested.

Operational Impact

Maintenance

• We now co-own a styling contract: our Tailwind/DaisyUI versions, host tokens and semantic colors directly affect package rendering. Every Tailwind 4.x or DaisyUI 5.x bump becomes a joint upgrade with visual regression.
• Published Blade overrides are a standing fork. Each release requires a diff-and-review step; without a documented owner they will drift and break silently.
• Two supported CSS topologies (host-DaisyUI vs standalone bundle) means support docs, onboarding and bug triage must branch accordingly. Recommend standardizing on one internally.

Support

• Known limitations to log as accepted debt with owners: internal stage-ID entry in the card form, programmatic field-error association, card-menu clipping near scroll edges, list/table accessibility semantics.
• Contrast for custom host palettes and provider-supplied stage colors is explicitly our responsibility — add a contrast check to the design-review checklist.
• Accessibility testing gap (no physical device, no full screen reader pass) must be disclosed to any stakeholder expecting compliance.
• Frontend regression testing is currently Edge-only in the release evidence; our own matrix must cover the browsers we actually support.

Scaling

• Positives: scoped multi-source reads, bounded eager loading, SQL counts and aggregate metrics, keyset cursors (better than offset paging on large boards), bounded card render windows, persistent column collapse.
• Watch items: local rank rebalancing implies write amplification on reorder-heavy boards — measure before large rollouts; bulk actions support atomic and partial modes, so callers must choose semantics explicitly; multi-source reads need index review on our side, since the package cannot optimize our schemas.

Failure modes

• Wrong or missing theme: data-theme vs data-kb-theme mismatch, or prefixed DaisyUI config — symptom is cosmetic, so it will be found late if not gated by visual tests.
• Global reset leakage: standalone bundle loaded alongside host styles or alongside the source CSS, degrading unrelated pages.
• Stale Blade overrides after upgrade: broken disclosure panels or lost behavior hooks.
• Cursor failures: key rotation or clock/serialization drift surfacing as pagination errors on large boards.
• Partial bulk-action outcomes leaving boards in a state users did not expect — needs UI messaging and an audit trail decision.
• Calendar adapter assumed working, failing at the integration boundary after commitment.

Ramp-up

• One backend developer ~1 sprint for Phases 0-2; add ~1-2 sprints for the Eloquent/multi-source work, plus design review time.
• Prerequisite knowledge: Livewire 4 component lifecycle, Tailwind 4 + DaisyUI theming, and enough of our domain model to define the source registry correctly.
• Recommend a single named owner for the CSS/theme contract and a single named owner for the model-adapter integration; these are the two places this package will accumulate hidden coupling.
• Onboarding cost is moderate and front-loaded — after Phase 2 the incremental cost per board is low, which is the main argument for adopting the model adapter rather than keeping boards on package-owned storage.