Blog

Upgraded legacy Rails app

How we safely upgraded a legacy Rails app with limited tests

Upgrading a 150k-line Rails monolith with low test coverage is risky. We avoided a "big bang" by using progressive rollouts and bot traffic to ensure a stable, incident-free migration.

Read full article
WebMCP

WebMCP: Making your website ready for AI agents

WebMCP is the new W3C standard that makes websites natively operable by AI agents, no slow vision models needed. Learn how to implement it in 15 minutes.

Read full article
Martian Day

All systems go: Martian Day Q1 2026 and the craft of AI engineering

MarsBased Q1 2026 review: A deep dive into our Martian Day strategy sessions focused on refining AI implementations, architectural precision, and technical mastery.

Read full article
Handbook

Leveling up: The new MarsBased Handbook

The MarsBased Handbook got a major refresh: new design, better search, and faster access to all policies and benefits. Find answers more intuitively than ever.

Read full article
Canals d' Urgell

Scaling new frontiers: Our landmark partnership with Canals d'Urgell

MarsBased signs its largest project in years with Canals d'Urgell, a partnership born from our mastery of AI discovery. We are leveraging AI as our primary ally to deliver two major, high-performance web applications.

Read full article
MWC 2026

MarsBased @ MWC & 4YFN 2026: The recap 🚀

Is coding becoming a commodity? Dive into our MWC 2026 recap to explore how Agentic AI is redefining the developer’s role and why the future belongs to the AI-native generation

Read full article
Boy-scout on Mars

The boy-scout engineer: Frontending with detail series (part 3)

True quality is defined by a mindset of accountability and the Boy-Scout Rule of leaving code cleaner than you found it. Senior success requires radical ownership and rigorous self-review to deliver excellence in every single commit.

Read full article
MWC

MarsBased @ MWC & 4YFN 2026

Barcelona is turning into the global tech epicenter this week, and MarsBased is right in the thick of it. Our CEO, Àlex Rodríguez Bacardit , and our CTO, Xavier Redó Cano, will be taking the stage across several venues to discuss Agentic AI, the future of engineering, and sustainable growth.

Read full article
Graveyard

Agents will not kill SaaS: They will circumvent it

Agentic AI won't kill SaaS because the value of SaaS isn't in the code itself. That's easy to replicate, but the rest isn't.

Read full article
MarsBased x Singularu

Trust is the ultimate success metric: We’re back with Singularu!

Trust is the ultimate metric: We are thrilled to be back 'in the kitchen' with Singularu for a new strategic chapter.

Read full article
Quality

The quality crisis in software

Software quality is declining even as tools improve. Buggy launches and unpolished AI apps signal a crisis in digital craft — quality is now a competitive edge.

Read full article
Cursor

Using Cursor as a Product Manager: faster answers, fewer pings

Stop the Slack scavenger hunt and navigate your codebase directly. Learn how to use Cursor to get faster answers and reduce engineer pings.

Read full article