The SOMOS DER systems: what we built for an events company with more than 150,000 attendees
SOMOS DER is an event production company in Argentina with more than 150,000 attendees across its events. For them I built four systems that run in production today: PASE, a QR accreditation platform; a photo sales system for the Cerro Catedral ski resort; LABURO, a supplier portal with more than 1,000 registered suppliers; and an international website with 544 pages in 5 languages. This is the case I point to when someone asks what “custom system from USD 2,500” actually buys.
PASE: accreditation with QR at the door
An event production company lives and dies at the door. PASE (pase.somosder.ar) handles the full accreditation cycle: guests register through invitations with capacity limits per time slot, each one receives a unique QR, and at the venue the staff validates codes with a phone camera in under a second, green or red.
The design detail that matters: access rules live in the guest type, not in anyone’s memory. A VIP re-enters all night; a single-shift pass burns on first scan. The registration form can even be embedded into a sponsor’s website with two lines of code, so partners run their own invitation campaigns while the capacity math stays central. I went deeper on how these systems work in QR check-in and accreditation systems.
Photo sales at Cerro Catedral
At Cerro Catedral, the ski resort in Bariloche, photographers shoot skiers on the slopes all day. The system at fotos.somosder.ar turns that into an automated sales channel: photos upload organized by day, slope and time, skiers find themselves from their phones in a few taps, previews are watermarked, and payment unlocks the original files instantly.
The business change is the removal of every manual step between “nice photo” and money: no stand queue, no laptop search, no “I will send it tonight”. The photographer photographs; the system sells, including after the lifts close. The full story is in selling photos online: the ski resort case.
LABURO: the supplier portal that maintains itself
Event production runs on suppliers: sound, catering, staff, structures, transport. That knowledge used to live in spreadsheets and memory. LABURO (laburo.somosder.ar) is a portal where suppliers register themselves, load their own categories, zones and contact data, and keep it current, because being findable in the directory is what gets them the next job.
That single incentive is why it grew past 1,000 registered suppliers without a data-entry team. Internally, production staff search by category and zone in seconds, and what used to be one person’s memory became company infrastructure. The general playbook is in supplier management systems.
The international site: 544 pages, 5 languages
The public face is somosder.com, an international site in 5 languages spanning 544 pages, with the Spanish-language market served on its own domain. At that scale a website is an engineering problem: every page has to exist in the right language with the right signals to Google about which version belongs to which market, and content is written for each market rather than translated mechanically. Multi-language work like this starts at USD 200 per language on my price list.
What the case shows
Four different problems, one method: fixed scope, fixed price, written delivery date, and systems delivered in the client’s name on their own domains. None of these tools existed off the shelf in a form that fit; all four have the shape of the operation they serve. That is the argument for custom software in one client’s story.
Frequently asked questions
What did these systems cost to build?
Each fits my custom tier, which starts at USD 2,500 with the exact price depending on scope, always fixed and in writing before starting. The web tiers are USD 400 and 900.
Do these systems really run in production?
Yes, all four, at the links in this article: pase.somosder.ar, fotos.somosder.ar, laburo.somosder.ar and somosder.com. They are live operations, not portfolio mockups.
Could you build something like this for my company?
If your operation has a repetitive process leaking time or money, most likely yes. Describe it in plain language and I will tell you what I would build, with a fixed price and date within 48 hours.
Why did one company need four separate systems?
Because they solve four separate problems, built one at a time as each proved itself. Starting narrow and extending is the pattern that works; it is how this whole relationship grew.
Have an operation that deserves systems like these? Message me on WhatsApp and you will have a fixed price and a delivery date in writing within 48 hours.