CONNECTORS
Your programs stay. The work moves.
Replace nothing, migrate nothing. LastOS connects to the programs you work with today, and you delegate the work that sits inside them.
ONE DAY
Eight stations, one working day.
This is what a day in your role looks like today, station by station with the programs it happens in. Switch the state and you see what LastOS prepares at every station and where your Approval falls.
Architect, project lead for work stages 5 to 8, practice with 25 staff
- 07:45
Inbox: 40 emails, 6 of them plan changes and 2 questions from site management.
- Outlookopen API
- Microsoft Teamsopen API
Entry prepared
Records sorted by project, the plan changes prepared as the Entry “change log”.
- Autonomous · sorting
- Approval required · minutes
- 08:30
Check the plan status: IFC export against the fire safety and accessibility checklist.
- Archicadopen API
- Revitopen API
- Excelopen API
Entry prepared
Model check against the practice’s Rules, review note with references, “Go to original” opens the model.
- Approval required · review note
- 10:00
Client meeting: minutes, open items, cost status per DIN 276.
- Microsoft Teamsopen API
- Word
- ORCA AVAGAEB/IFC exchange
Entry prepared
Draft minutes from the meeting, cost status from the tendering software, open items created as tasks in PlanRadar.
- Approval required · minutes
- 11:30
Finish the bill of quantities for the shell, GAEB export.
- ORCA AVAGAEB/IFC exchange
- Excelopen API
Entry prepared
Bill items reconciled with the model quantities, gaps marked.
- Approval required · bill of quantities
- 13:30
On site: defect walk, photos, assignment to trades.
- PlanRadaropen API
- Smartphone
Entry prepared
Defects assigned, deadlines set, letters to the trades prepared.
- Approval required · defect notice
- 15:30
Site diary and change order review: three change orders from the general contractor.
- Excelopen API
- Outlookopen API
Entry prepared
Change orders checked against contract and bill of quantities, review note “justified” or “not justified” with reasons.
- Four eyes · change order review
- 17:00
Book hours, prepare the invoice for work stage 5.
- Excelopen API
- DATEVopen API
Entry prepared
Draft invoice per HOAI status, hours prefilled from the calendar.
- Approval required · invoice
- 17:30
End of day: what was approved, what is still waiting.
Entry prepared
Audit trail of the day, open Approvals for tomorrow.
No Approval needed
SILOS
Separate programs today. One line with LastOS.
Every program keeps its data to itself, and a person carries it from one to the next. LastOS changes nothing about the programs. It connects every group to the same line, and the Entry is built from all of them together.
Separate programs, separate data.
Office and email
- Outlookopen API
- Microsoft Teamsopen API
- SharePointopen API
- Excelopen API
CAD and BIM
- Archicadopen API
- Revitopen API
- Allplanopen API
- Vectorworksopen API
- AutoCADopen API
Tendering and cost
- ORCA AVAGAEB/IFC exchange
- California.proGAEB/IFC exchange
- NOVA AVAopen API
- SIDOUN GlobeGAEB exchange
Site supervision and defects
- PlanRadaropen API
- Daluxopen API
Structural analysis
- Dlubal RFEMopen API
- SOFiSTiKopen API
- mb AECno interface yet
Scheduling
- Asta Powerprojectopen API
- MS Projectopen API
Documents
- Nextcloudopen API
- DocuWareopen API
INTERFACES
- open API
- interface on request
- standard formats such as GAEB, IFC, OpenImmo, DATEV
- no interface yet
The status per program comes from our review of the interfaces on September 9, 2026. Without public documentation we do not claim an open API. An interface on request is not shown as a connection, and a program without a known interface remains your program, not a connector. Programs without a label have not been reviewed yet.
ACROSS ROLES
Six areas that concern every business.
Image editing, social media, accounting, HR, documents, and communication belong to every role. These programs stay where they are as well.
Image editing
- Adobe Photoshopopen API
- Adobe Lightroomopen API
- Canvaopen API
- Affinity Photono interface yet
Social media
- LinkedInopen API
- Meta Business Suiteopen API
- Hootsuiteopen API
- Laterno interface yet
Accounting
- DATEVopen API
- Abacusopen API
- BMDEDI/XML file exchange
- Lexware Officeopen API
- sevDeskopen API
HR and payroll
- Personioopen API
- HRworksopen API
- rexx systemsinterface on request
- Sage HRopen API
- DATEV LODASopen API
Document management
- SharePointopen API
- Nextcloudopen API
- DocuWareopen API
- d.velopopen API
- ELOopen API
Communication
- Outlookopen API
- Microsoft Teamsopen API
- Zoomopen API
- WhatsApp Businessopen API
- Threemaopen API
HOW IT WORKS
Five steps, the same in every program.
Source
A Source is a connected source system, for example your inbox or your industry software, and it stays where it is.
Record
A Record is what comes in: an email, a document, or a record from the Source.
Rules
You set the Rules at the start in sentences; the system follows them for all future work.
Entry
An Entry is the result of the work, a quote, a review note, minutes, or a report, each with its calculation path.
Approval
The Approval is the last step, it belongs to a person, and only then does anything leave the building.
ACROSS COMPANY BOUNDARIES
The Entry travels from house to house.
When both sides use LastOS, the Entry travels with its audit trail from house to house, from the architecture practice to the general contractor, to the developer, to property management.
Every station records who decided when and on what basis, and nothing is migrated.
Without LastOS on the other side, email remains the connector, and the Entry goes out as a draft that you have approved.
DEMO
See it on a program you know.
In 30 minutes we show you a case from your day-to-day, connected to a program you work with today. You see the Record, the Entry, and the Approval.