bronze-buildfoodosfromscratchasaprofessionalproduction

byKhristi Amit

BUILDFOODOSFROMscratchasaprofessionalproductionreadyMULTITENANTSAASplatformforfoodbusinessesofalltypesincludingstreetstalls,foodcarts,foodtrucks,homefood,cafes,bakeries,QSRs,cloudkitchens,takeaways,restaurantsandmultibranchrestaurantgroups.Donotbuildasimpledemo,landingpageorbasicCRUDapp.BuildarealscalableFoodOperatingSystemwithauthentication,tenantisolation,subscriptions,RBAC,QRordering,onlineordering,POS,KDS,realtimeorders,CRM,menu,inventory,analytics,payments,notifications,branchesandplatformadministration. COREMODEL:PlatformAdmin→Plans→BusinessTenant→Branches→StaffRoles→Menu→QRTables→Orders→Payments→Customers→Analytics. MULTITENANCY:EverybusinessmusthaveanisolatedtenantworkspacewithtenantID,businessprofile,businessType,subscription,users,roles,branches,products,categories,addons,orders,customers,tables,QRcodes,payments,offers,inventory,notifications,settingsandanalytics.TenantAmustNEVERaccessTenantBdata.Enforceisolationatbackendanddatabaselevelusingauthorization,foreignkeys,indexesandtenantscopedqueries. BUSINESSTYPES:StreetStall,FoodCart,FoodTruck,HomeFood,Cafe,Bakery,FastFood,QSR,Restaurant,CloudKitchen,TakeawayandMultiBranchRestaurant.ThebusinessTypecontrolsthedefaultdashboardandvisiblemodules.Astreetstallshouldnotbeoverloadedwithrestaurantfeatures. ONBOARDING:CreatepremiummultiSteponboarding:Account→BusinessName→BusinessType→Location→Logo→Brand→OperatingHours→Menu→Payment→Plan→Complete.Allowskip/saveprogress. CUSTOMERAPP:Buildpremiumresponsivecustomerexperiencewithbusinesspage,digitalmenu,search,categories,productdetails,variants,addons,cart,checkout,payment,confirmation,livetracking,orderhistoryandprofile.Customerdoesnotneedanapp.Coreflow:QRorLink→Menu→Product→Customize→Cart→Checkout→Pay→Track. QR:GenerateuniqueQRcodesforbusiness,branch,table,counterandstall.QRautomaticallyidentifiesthecorrecttenantandbranchandoptionallytable.RestauranttableQRshouldattachordertotable.StallQRshouldopenstallmenuandordering. MENU:ProfessionalmenuCMS.Productsneedname,description,price,image,category,variants,addons,tax,availability,veg/nonveg,featured,bestseller,preparationtimeandnotes.Supportimageupload,bulkedit,duplicate,archiveandavailabilitytoggle. ORDERENGINE:UseDRAFT,PLACED,CONFIRMED,PREPARING,READY,OUT_FOR_DELIVERY,COMPLETED,CANCELLED,REFUNDED.PreventinvalidstatustransitionsserverSide.Storestatushistory,timestampsandactorinformation. DASHBOARD:Ownerdashboardwithrevenue,orders,AOV,customers,popularproducts,salescharts,recentorders,pendingorders,preparingorders,completedorders,lowstockalerts,subscriptionandquickactions.Createadaptivecomplexityforsmallandlargebusinesses. POS:BuildfastPOSforcashier/owner.SupportDineIn,Takeaway,Pickup,DeliveryandCounter.Productsearch,categoryshortcuts,quickadd,cartediting,discounts,coupons,notes,customerselection,paymentandreceipt. KDS:CreateprofessionalKitchenDisplaySystemwithNEW→CONFIRMED→PREPARING→READY→COMPLETED.Showordernumber,time,items,quantity,modifiers,notes,table/customer,priorityandtimer.OneTapstatuschangesandrealTimeupdates. TABLES:Forrestaurants/cafesprovidefloor/tablemanagement,number,capacity,status,QR,currentorder,merge,splitandtransfer.Streetstallsdonotneedthismodule. RBAC:SupportPlatformAdmin,Owner,Manager,Cashier,KitchenStaff,Waiter,DeliveryStaffandcustomroles.Permissionsfororders,products,customers,inventory,payments,analytics,staff,branches,settingsandsubscription.Enforcepermissionsbackend. SUBSCRIPTIONS:FoodOSisalsoaSaaSwithFREE,STARTER,GROWTH,PROandENTERPRISEplans.Supporttrial,monthly/yearlybilling,featurelimits,usagelimits,upgrade,downgrade,cancellation,renewal,paymentfailure,pastDueandgraceperiod.Createcentralfeatureentitlements:QR_MENU,ONLINE_ORDERING,POS,KDS,ANALYTICS,CRM,INVENTORY,OFFERS,MULTI_BRANCH,CUSTOM_BRANDING,CUSTOM_DOMAIN,API,ADVANCED_REPORTS.SubscriptionpermissionsmustbevalidatedserverSide. PLATFORMADMIN:CreateaseparateFoodOSsuperAdminpanel.Managetenants,users,plans,subscriptions,payments,trials,features,support,revenue,analyticsandsystemsettings.Addsearch,filters,tenantdetails,activitylogsandsubscriptionmanagement. PAYMENTS:CreateprovideragnosticpaymentlayerforUPI,onlinegateway,cardsandcash.States:PENDING,PROCESSING,SUCCESS,FAILED,REFUNDED,PARTIALLY_REFUNDED.Nevertrustfrontendpaymentstatus.Usewebhookverification,idempotencyandservervalidation. WHATSAPP:CreateintegrationReadyarchitecturefororderreceived,confirmed,preparing,ready,completedandpaymentnotifications.Useenvironmentvariablesforcredentials.Neverexposesecrets. REALTIME:UseWebSocketsorSupabaseRealtimeforneworders,statuschanges,KDSupdates,paymentupdatesanddashboardcounters.Handleduplicateeventsandconnectionrecovery. CRM:Customerprofileswithname,phone,orderhistory,totalspending,lastorder,favoritesandvisitfrequency.Useprivacyconsciousdatacollection. OFFERS:Supportpercentage,flat,productSpecific,firstOrder,minOrder,expiry,usageLimit,customerLimitandactivePeriodcoupons/promotions. INVENTORY:Optionalmodulewithingredients,units,stock,lowStockalerts,adjustments,purchases,suppliers,consumptionandinventoryhistory.Allowautomaticstockdeductionwhenconfigured. BRANCHES:Eligibleplanscancreatebranches.Eachbranchhasaddress,hours,staff,menu,tables,orders,inventory,QRs,settingsandanalytics.Supportbranchlevelandorganizationlevelreports. BRANDING:Tenantcanconfigurelogo,businessname,accentcolor,coverimage,menuappearanceanddescription.PreparewhiteLabel/customdomainarchitecture. ANALYTICS:Revenue,orders,AOV,newcustomers,repeatcustomers,popularproducts,categorysales,peakhours,paymentmethods,discountusage,branchperformanceandorderstatus.UseToday,7Days,30Days,90DaysandCustomRange.DoNotclaimprofitunlesscostdataexists. NOTIFICATIONS:CreateinAppnotificationcenterfororders,payments,inventory,subscription,systemandpromotions.Prepareemail,WhatsAppandSMSintegrationlayers. DESIGN:UsepremiumMidnightFoodOSdesign.DeepnearBlackbackground,glasssurfaces,subtleborders,ambientgradients,modernlargeTypography,highqualityfoodimages,elegantbuttons,softshadowsandclearstatusindicators.CustomerUIshouldfeel likepremiumfoodapp.AdminUIshouldfeel likeLinear+Stripe+modernPOS.KDSmustprioritizespeedandreadability.Donotoveruseglassmorphism. MOTION:UseFramerMotionorsimilarforpageTransitions,scrollReveal,hoverDepth,imageTransitions,orderstatusanimations,modals,toastsandmicroInteractions.UseGPUfriendlytransform/opacity.Respectreducedmotion. ACCESSIBILITY:SemanticHTML,keyboardnavigation,visiblefocus,properlabels,accessibleforms,contrastandreducedmotion. RESPONSIVE:Mobilefirst.CustomeroptimizedforAndroid/iPhone.Adminresponsivephone/tablet/desktop.KDSandPOSoptimizedtablet/desktop.NoHorizontalOverflow.Touchfriendlycontrols. PWA:MakecustomerorderinginstallableasPWAwhereappropriatewithmanifest,iconsandnetworkrecovery.Donotpretendofflineordersaresuccessful. TECHSTACK:FrontendReact+TypeScript+Vite+TailwindCSS+shadcn/ui+Lucide+FramerMotion.BackendNode.js+TypeScript+Express/NestJS.DatabasePostgreSQL+Prisma.RealtimeWebSockets/SupabaseRealtime.Storageobjectstorageforimages.Use.envforsecrets. ARCHITECTURE:Usecleanmodulararchitecturewithapps/web,apps/apiandsharedpackageswhereuseful.Domainmodules:auth,tenants,subscriptions,products,categories,orders,payments,customers,inventory,analytics,notifications,QR,branches,staffandsettings.KeepbusinesslogicoutofReactcomponents.Usevalidationservices,repositoriesandtypedAPIs. DATABASE:PostgreSQLwithUUIDs,foreignkeys,indexes,uniqueconstraints,timestamps,softDeletewhereappropriateandauditfields.Createproperrelationshipsforusers,tenants,plans,subscriptions,features,entitlements,branches,roles,permissions,products,categories,variants,addons,tables,QR,carts,orders,orderItems,payments,customers,coupons,offers,inventory,suppliers,notifications,auditLogsandsettings. SECURITY:Securepasswordhashing,secureauthentication,sessions/tokens,refreshrotationwhereappropriate,RBAC,tenantauthorization,inputvalidation,ratelimiting,secureheaders,CORS,CSRFprotectionwhereapplicable,SQLinjection/XSSprotection,auditlogs,secretmanagementandwebhookverification.Neverstoreplaintextpasswords.NeverexposeAPIsecrets. PERFORMANCE:CodeSplitting,lazyLoading,optimizedimages,caching,pagination,efficientqueries,debouncedsearch,virtualizationforlargeLists,compressedassetsandserverSidepagination. OBSERVABILITY:Structuredlogs,requestIDs,errorhandling,healthcheck,readinesscheckandbasicmetrics.Donotlogpasswords,tokensorfullpaymentdata. TESTING:Createunit,API,integration,database,RBAC,tenantIsolation,subscriptionEntitlement,orderLifecycle,paymentWebhookandcriticalE2Etests.Testsuccessandfailurepaths. DEMODATA:Seedmultiplebusinesstypes,branches,products,categories,tables,customers,orders,staffandplans.CreateclearlydocumenteddemoaccountsforPlatformAdmin,Owner,Manager,Cashier,KitchenStaffandCustomer. DOCUMENTATION:CreateREADME,.env.example,databaseSetup,migrations,seeding,APIdocumentation,architecture,roles,permissions,subscriptionfeatures,integrationsetup,testinganddeploymentinstructions. DEPLOYMENT:Productionreadyfrontend,backend,database,storageandrealtimeconfiguration.Addbuildscripts,migrationcommands,seedcommands,healthchecks,errorhandling,loggingandsecureconfiguration. IMPLEMENTATIONORDER:Architecture→Database→Authentication→RBAC→TenantIsolation→Onboarding→Subscriptions→Menu→Products→QR→CustomerOrdering→Cart→Checkout→Payments→POS→KDS→Realtime→CRM→Inventory→Offers→Branches→Analytics→PlatformAdmin→Notifications→PremiumUI→Testing→Security→Deployment. FINALVALIDATION:Runmigrations,seeds,testsandproductionbuild.FixallTypeScript,buildandruntimeerrors.TestQRflow,customerordering,checkout,paymentarchitecture,KDS,realtime,RBAC,subscriptionlimits,tenantisolation,mobile,tabletanddesktoplayouts.Verifythatstreetstallflowissimplewhileadvancedrestaurantfeaturesremainavailableforlargerbusinesses.BuildFoodOSasaseriouscommercialSaaSplatformcapableofservingthousandsoffoodbusinesseswithscalablearchitecture,security,premiumMidnightUIandexcellentUX.

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System Requirements

System Requirement Document
Page 1 of 1

System Requirements Document for bronze-buildfoodosfromscratchasaprofessionalproduction

1. Introduction

FoodOS by TechCart is a professional, production-ready, multi-tenant SaaS Food Operating System for food businesses of all types — street stalls, food carts, food trucks, home food, cafes, bakeries, fast food, QSRs, restaurants, cloud kitchens, takeaways, and multi-branch restaurant groups.

This is explicitly not a simple demo, a landing page, or a basic CRUD application. It is a real, scalable operating system with authentication, tenant isolation, subscriptions, RBAC, QR ordering, online ordering, POS, KDS, realtime orders, CRM, menu, inventory, analytics, payments, notifications, branches, and platform administration.

The product intent is commercial scale: a serious SaaS platform capable of serving thousands of food businesses, where each business operates inside an isolated tenant workspace whose visible dashboard and modules adapt to its business type — a street stall is never overloaded with restaurant features, while advanced restaurant, cafe, and multi-branch capabilities remain available to larger operations.

Audience. The platform serves two macro-audiences under one system:

  • Tenant-side food businesses and their staff — Business Owners, Managers, Cashiers, Kitchen Staff, Waiters, and Delivery Staff, each with
Preview dataChanges stay in this preview.
Landing design preview
Landing: Discover FoodOS
Sign Up: Create owner account
Onboarding: Enter business name and type
Onboarding: Set location and logo
Onboarding: Configure brand and hours
Onboarding: Add initial menu
Onboarding: Set payment and plan
Dashboard: Review revenue and orders
Dashboard: Check low-stock alerts
Dashboard: Monitor subscription status
Branding & Settings: Update branding
Menu: Manage menu items
Branches: Configure branches
Staff & Roles: Assign staff roles
QR Codes: Generate table QR codes
Subscription: Manage plan and billing
Analytics: Review sales analytics
Notifications: Review alerts
Preview dataChanges stay in this preview.
Landing design preview
Landing: Discover FoodOS
Sign Up: Create owner account
Onboarding: Enter business name and type
Onboarding: Set location and logo
Onboarding: Configure brand and hours
Onboarding: Add initial menu
Onboarding: Set payment and plan
Dashboard: Review revenue and orders
Dashboard: Check low-stock alerts
Dashboard: Monitor subscription status
Branding & Settings: Update branding
Menu: Manage menu items
Branches: Configure branches
Staff & Roles: Assign staff roles
QR Codes: Generate table QR codes
Subscription: Manage plan and billing
Analytics: Review sales analytics
Notifications: Review alerts