Laravel Cloud Navigation in Filament v4: Full tutorial and code https://silvanhagen.com/writing/laravel-cloud-navigation-in-filament/

AdminPanelProvider.php

<?php

namespace App\Providers\Filament;


// Other imports
use function Filament\Support\original_request;

class AdminPanelProvider extends PanelProvider
{
    public function panel(Panel $panel): Panel
    {
        return $panel
            // Other methods
            ->tenant(Team::class)
            ->topNavigation()
            ->topbarLivewireComponent(CustomTopbar::class)
            ->viteTheme('resources/css/filament/admin/theme.css')
            ->navigation(function (NavigationBuilder $builder): NavigationBuilder {
                $tenant = Filament::getTenant();
                $catalogs = $tenant->catalogs;
                $builder->groups(
                    [
                        NavigationGroup::make('Catalogs')
                            ->items(
                                $catalogs
                                    ->map(
                                        fn (Catalog $catalog): NavigationItem => NavigationItem::make($catalog->name)
                                            ->icon(Heroicon::DocumentCheck)
                                            ->url(CatalogResource::getUrl())
                                            ->isActiveWhen(fn (): bool => original_request()->route('catalog') == $catalog->id)
                                    )->toArray()
                            ),
                        ...$catalogs
                            ->filter(fn (Catalog $catalog): bool => original_request()->route('catalog') == $catalog->id)
                            ->map(fn (Catalog $catalog): NavigationGroup => NavigationGroup::make($catalog->name)
                                ->items([
                                    NavigationItem::make(LinkResource::getNavigationLabel())
                                        ->icon(fn (): string|BackedEnum|Htmlable|null => LinkResource::getNavigationIcon())
                                        ->url(
                                            LinkResource::getUrl(
                                                name: 'index',
                                                parameters: ['tenant' => $catalog->team_id, 'catalog' => $catalog->id]
                                            ))
                                        ->isActiveWhen(fn (): bool => original_request()->routeIs('filament.admin.resources.catalogs.links.*')
                                                && original_request()->route('catalog') == $catalog->id
                                        )
                                        ->badge(fn () => original_request()->routeIs('filament.admin.resources.catalogs.*')
                                            && original_request()->route('catalog') == $catalog->id
                                                ? Cache::flexible(
                                                    key: 'links_count:'.$catalog->id,
                                                    ttl: [10, 60],
                                                    callback: fn () => $catalog->loadCount('links')->links_count
                                                )
                                                : null
                                        ),
                                ])
                                ->collapsed()
                            )->toArray(),
                    ],
                );

                return $builder;
            });
    }
}