nolimeo/Technologies/Supabase & Custom APIs
Open-source alternative to Firebase

Supabase & Custom APIs

Developing complex backend logic doesn't have to mean months of work and thousands of lines of code around server management. Supabase is a modern open-source alternative to Firebase, built on a PostgreSQL relational database. It provides authentication, real-time data synchronization, secure file storage, and Row Level Security (RLS) directly at the database level. You get a stable foundation without unnecessary vendor lock-in.

The risks of building a backend from scratch

A custom backend can quickly grow into an expensive and risky infrastructure

When you develop a backend from scratch, you have to handle authentication, user authorization, backups, database security, file storage, and protection under heavy load. A single mistake in the API or access rules can expose sensitive data, cause a system outage, and create a GDPR issue.

Data leaks

Improperly secured API endpoints can expose data to unauthorized users.

High costs

Managing servers, databases, backups, and monitoring can quickly inflate the project budget.

Slow synchronization

Real-time notifications, chats, or live dashboards can easily stretch into weeks of work on a custom backend.

Solving the problem

Row Level Security (RLS)

Data access is verified directly in the database according to rules and the logged-in user.

Real-time via WebSockets

Supabase automatically broadcasts database changes to connected clients. Ideal for order tracking, chats, and live dashboards.

Edge Functions & Serverless

Custom TypeScript functions can handle payments, webhooks, and integration logic without a separate server.

Robust custom backends

A secure infrastructure built on open technologies.
01
PostgreSQLRelational database
02
EU regionSecurity
03
Real-timeInstant response
PILIER

Modern backend infrastructure without compromises

Supabase accelerates web and mobile application development by combining database, authentication, storage, real-time communication, and serverless functions into one backend foundation. Because it runs on PostgreSQL, it suits applications that need relational data, clear access rules, and solid database control. Supabase also supports backups, monitoring, and scaling as traffic grows.

Key features of the Supabase platform

01
SQL and relational queriesSupport for more complex queries, Views, and database functions.
02
Supabase AuthBuilt-in user management with Multi-Factor Authentication (MFA) support.
03
Storage with CDNStorage for documents, invoices, and images with the option to connect to a CDN.
04
Database BackupsAutomated backups and, on higher plans, Point-in-Time Recovery (PITR).
Process

How we design a Supabase backend

01

PostgreSQL relational
schema design

We define tables, indexes, and relationships so the database can handle real-world loads.

02

RLS rules
configuration

We set up SQL rules that determine data access based on the user and their permissions.

03

Auth & SSO
integration

We configure login via Google, Apple, email, or corporate SSO.

04

Edge Functions
integration

We write secure APIs for payments, webhooks, and external service integrations.

Comparison

Supabase vs. Firebase vs. custom Node.js backend

Feature
Firebase (Google) / Custom API
Supabase architecture
Vendor lock-in
Data is in a proprietary NoSQL system, making exports difficult
You can export the PostgreSQL database and run it outside the original platform
Development speed
Authentication, file management, and database rules must be developed separately
Proven infrastructure adapted to the project significantly faster
Data security
Permissions are often handled in the application code, where errors easily occur
Row Level Security enforced directly by the database engine
Our standard

When Supabase is not the ideal choice for you

Supabase is built on PostgreSQL. If your project needs to store massive amounts of unstructured data without relational links—such as sensor data or high-volume logs—a NoSQL or specialized analytical database might be more appropriate. Supabase also requires a strong knowledge of SQL and RLS rules. Improperly configured permissions can cause security issues.

nolimeo.Developers, not marketers.
01
Dependence on SQL qualityPoorly written RLS rules can slow down database queries.
02
Unsuitable for pure NoSQLIf you need purely document-based storage without relationships, PostgreSQL may not be optimal.
03
Edge Functions limitsServerless functions have limited execution times. They are suitable for APIs and webhooks, not long-running scripts.
FAQ

Frequently asked questions about Supabase

Have more questions?

If you didn't find the answer you were looking for, feel free to drop us a line at [email protected].

[email protected]

Supabase can be designed for cloud or self-hosted deployment depending on project requirements. For European cloud projects, we select an EU data center, typically Frankfurt. For self-hosting, Supabase is deployed via Docker on infrastructure you own or have contractually secured with providers such as Hetzner, Netcup, Scaleway, AWS, Google Cloud, or Microsoft Azure. Data transfer is encrypted, and database access is protected through Row Level Security, firewalls, backups, monitoring, and proper permission settings. The result is a backend with clear technical and contractual control, designed around GDPR requirements.

Yes. Supabase is open-source and can run on your own infrastructure via Docker. However, with self-hosting, you must account for managing the database, backups, updates, monitoring, and security. For some projects, the cloud version makes more sense, while for others, a custom infrastructure in the EU is better.

In a standard backend, the API often checks whether a user can see a specific record. In Supabase, the database itself can perform this check via RLS rules. If configured correctly, users only receive the rows they are authorized to see based on their login token.

Yes. We use Supabase Edge Functions for this. Upon a successful payment, Stripe sends a webhook to an Edge Function, which verifies the request signature and securely writes the payment information into the PostgreSQL database.

Interested in pushing your project forward?