Járnhaus

Software house - we build custom apps & tools with AI agents under human direction. No subscriptions, you own the code. 🔨

[Járnhaus @jarnhaus]

𝗪𝗵𝗮𝘁 𝗶𝘀 𝗝𝗮́𝗿𝗻𝗵𝗮𝘂𝘀?

A software house building custom apps, tools & AI integrations. AI agents build, engineers direct - scope, security, what ships.

No subscriptions. You own the code.

https://t.co/3lSYZZqNPN

[Járnhaus @jarnhaus]

"No lock-in" is easy to say. Here's what it means with Völundr.

The output is a Docker container - standard, portable, any developer can run it anywhere. Download it, move it, walk away. We don't hold the keys.
#SoftwareDevelopment #AI #Startups

[Járnhaus @jarnhaus]

Every company has one spreadsheet quietly running the business.

It started as a quick fix. Now it has formulas only one person understands and three people are afraid to touch it.

That's not a tool. It's a system with no backups.

#SoftwareDevelopment #Startups

[Járnhaus @jarnhaus]

𝐌𝐨𝐬𝐭 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐝𝐨𝐞𝐬𝐧'𝐭 𝐟𝐚𝐢𝐥 𝐛𝐞𝐜𝐚𝐮𝐬𝐞 𝐭𝐡𝐞 𝐜𝐨𝐝𝐞 𝐢𝐬 𝐛𝐚𝐝.

It fails because nobody agreed on what "done" meant before the building started. Six months in, everyone's arguing about scope instead of shipping.
#SoftwareDevelopment #Startups

[Járnhaus @jarnhaus]

Everyone's talking about AI writing code. That's not the interesting part.

The interesting part is who gets to commission software now. It used to take a dev team and a budget most businesses don't have. That's changing.

#AI #buildinpublic #dev #softwaredevelopment #startup

[Járnhaus @jarnhaus]

𝐕𝐨̈𝐥𝐮𝐧𝐝𝐫 𝐢𝐬 𝐨𝐧𝐞 𝐭𝐡𝐢𝐧𝐠 𝐰𝐞 𝐛𝐮𝐢𝐥𝐝. 𝐇𝐞𝐫𝐞'𝐬 𝐭𝐡𝐞 𝐫𝐞𝐬𝐭.

Järnhaus also takes on custom projects directly: internal tools, customer-facing products, AI integrations, workflow automation, SaaS-to-owned migrations.

Different pace, same principle.

[Járnhaus @jarnhaus]

𝐀 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐤𝐢𝐧𝐝 𝐨𝐟 𝐩𝐫𝐨𝐨𝐟 𝐭𝐨𝐝𝐚𝐲.

𝐁𝐥𝐚𝐜𝐤𝐭𝐨𝐩: courtside scorekeeper for street basketball, run from one phone. Tap points, rebounds, assists, fouls per player, live team score. Undo everything. No sign-up.

#buildinpublic #AI

[Járnhaus @jarnhaus]

𝐋𝐞𝐭'𝐬 𝐛𝐞 𝐜𝐥𝐞𝐚𝐫 𝐚𝐛𝐨𝐮𝐭 𝐰𝐡𝐚𝐭 𝐕𝐨̈𝐥𝐮𝐧𝐝𝐫 𝐚𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐢𝐬.

Not no-code. Not a chatbot wrapper. It writes real code, in a real repo, any developer can open and change.

Software, built normally. Just faster.

#AI #NoCode

[Járnhaus @jarnhaus]

𝐁𝐚𝐜𝐤 𝐭𝐨 𝐕𝐨̈𝐥𝐮𝐧𝐝𝐫 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐬 𝐭𝐨𝐝𝐚𝐲: what happens when it doesn't work?

Every pipeline run has a chance of failing. We don't pretend otherwise.

If it fails before delivering, you're refunded 𝐢𝐧 𝐟𝐮𝐥𝐥 - automatically. No ticket, no 5-day wait.

[Járnhaus @jarnhaus]

Most companies rent their software.

Per-seat pricing. Monthly bills. Vendor lock-in.

We think there's another way:
➡️ Build it.
➡️ Own it.
➡️ Run it where you choose.

𝐅𝐨𝐫𝐠𝐞 𝐬𝐨𝐟𝐭���𝐚𝐫𝐞 𝐲𝐨𝐮 𝐨𝐰𝐧. ⚒️

https://t.co/3lSYZZqNPN

#BuildInPublic #SaaS #AI

[Járnhaus @jarnhaus]

How pricing actually works.

Starting a build costs nothing - see the full plan and price before anything runs. Builds: €49-149. Hosting after: from €15/mo.

No sales call. No "contact us for pricing." It's just on the page.

[Járnhaus @jarnhaus]

𝗔 𝗻𝗼𝘁𝗲 𝗳𝗿𝗼𝗺 𝘁𝗵𝗲 𝗽𝗲𝗿𝘀𝗼𝗻 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝘁𝗵𝗶𝘀:

Járnhaus isn't a team of twelve with a sales department. It's me. When you write in, you're talking to whoever can actually change the code.

Small isn't a limitation here. It's the point.

[Járnhaus @jarnhaus]

𝐖𝐡𝐲 "𝐉𝐚́𝐫𝐧𝐡𝐚𝐮𝐬"?

Old Norse: járn - iron. Not steel, not silicon. The first metal humans learned to forge into something that actually holds.

Iron holds. That's the whole idea.

[Járnhaus @jarnhaus]

What's the one SaaS subscription you'd cancel today, if you could replace it with something you owned outright?

Not the ones you love — the one you keep paying for because switching feels harder than it's worth.

[Járnhaus @jarnhaus]

Yesterday: how Völundr builds - 4 agents, one pipeline. Today: one thing it actually built.

Sala: a reservation board for a 14-table restaurant. The screen is the room itself - real layout, live conflict-checking, no double-bookings.

https://t.co/ZOEySgnXlm

[Járnhaus @jarnhaus]

@markproduct Still trying to learn it!

[Járnhaus @jarnhaus]

@GohilHardy Strongly disagree!

[Járnhaus @jarnhaus]

@Guronnimo Of course!

[Járnhaus @jarnhaus]

@nicopuhlmann Hi there!

[Járnhaus @jarnhaus]

@HeyAlexjr Check out our first release - Völundr. It takes an app from idea to a deployed build in one pipeline run. For founders who want to own their stack instead of renting another SaaS subscription.

https://t.co/qRWGjP7hY8

[Járnhaus @jarnhaus]

@launch_llama Easy choice... 10% a month of course