---
title: "Modular Monoliths: Clean Domains, Simple Operations ‣ harasim.dev"
url: https://daily.dev/posts/fqvycftbr
source_url: https://harasim.dev/modular-monoliths-balancing-domain-isolation-with-operational-simplicity/
type: share
source: "Marcin Harasim"
author: "Marcin Harasim"
published: 2026-02-11T08:19:16.006Z
updated: 2026-02-11T08:19:57.617Z
tags: ["architecture", "php", "microservices", "symfony"]
upvotes: 1
comments: 0
language: en
---

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# Modular Monoliths: Clean Domains, Simple Operations ‣ harasim.dev

**[Marcin Harasim](https://daily.dev/sources/oloniowq6jt0vklbujh6v)** · [@marcinharasim](https://daily.dev/marcinharasim) · 1 upvotes · 0 comments

## Summary

Modular monoliths offer strict domain isolation without microservices complexity by treating modules as bounded contexts within a single deployable unit. The architecture uses a 3-layered structure (Domain, Application, Infrastructure) per module, with cross-module communication restricted to infrastructure layers only. PHP 8.4 property hooks and XML mapping keep domain entities framework-agnostic, while Deptrac enforces architectural boundaries at build time. This approach delivers microservices-level logical separation with monolith-level operational simplicity, eliminating network latency and distributed tracing overhead.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://harasim.dev/modular-monoliths-balancing-domain-isolation-with-operational-simplicity/>

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---

Tags: [#architecture](https://daily.dev/tags/architecture), [#php](https://daily.dev/tags/php), [#microservices](https://daily.dev/tags/microservices), [#symfony](https://daily.dev/tags/symfony)

[View this post on daily.dev](https://daily.dev/posts/fqvycftbr)