I built a SaaS because I couldn't promote my Blender add-on any other way.

I'm a 3D web developer. Blender, Webflow, Three.js, the usual. 15 years of building visual stuff for clients.

3 years ago I shipped a Blender add-on — GLB Optimizer — that does for glTF/GLB files what ImageOptim does for JPEGs. Published it on Blendermarket. Small product, niche audience, real users. The product itself worked. The promotion did not.

The problem: I hated doing social media. I'd post once, get bored, disappear for 3 months, miss the slow build-up that niche products need. I knew the math — 100 paying users over 2 years is realistic for a Blendermarket add-on — but the manual outreach for it was soul-crushing.

I was already building n8n automations for clients (LOVIZ AI — that's the service brand I run). The obvious next question was: why am I not automating my own social media the same way?

So I built a personal LinkedIn auto-poster + outreach pipeline. Same approach as the client work: target by keyword, send personalised first messages, follow up on cadence, respect the platform's limits. Within 2 months the Blender add-on had 3× the visibility it had the previous year. Two of the buyers became recurring LOVIZ AI clients.

That was the moment I realised the tool was bigger than the original problem. I'm a solo founder. I can't manually do outreach for 5 clients + 1 SaaS + 1 add-on. The automation IS the product.

So I productized it. Spent 6 months rebuilding it as a proper cloud platform — server-side, no browser plugin, EU-hosted, conservative limits, real human pacing. Pulled in Sächsische InnoStartBonus (SAB) funding to buy the runway. Launched as inboundy.app — LinkedIn automation for founders who don't have time to do it manually.

The thing that makes me weirdly confident in this: I didn't build a LinkedIn tool because I thought the market was big. I built it because I needed it for a Blender add-on, then realised the same problem breaks every solo founder I know. The "why" is concrete, not market-sized.

Currently:

• LOVIZ 3D (3D web dev, ~6 active clients)
• LOVIZ AI (n8n automation agency, ~4 active clients)
• GLB Optimizer (Blendermarket add-on, paying)
• inboundy.app (LinkedIn automation SaaS, paying, growing)
• All solo. All from Leipzig. Sächsische InnoStartBonus (SAB) funding in the bank.

The architecture and the cost breakdown (€58/month total stack) is a different post — this one is just the origin.

AMA about Blender add-on distribution, LinkedIn automation done right, or solo-founder chaos.

— Lorenz
(@Loviz, loviz.de + loviz-ai.de + inboundy.app)