Machines that pay their own upkeep.

Every shared machine runs its own keyless NEAR account. Members who maintain it earn access.

Live on NEAR testnet

One spreadsheet. One admin.

Today a shared machine’s money and rules live in one person’s spreadsheet.

Printer fund Example

Row	A	B	C	D
1	Member	Hours	Paid	Upkeep credit
2	Ava	6	€18	3 h0 h
3	Mark	4	€12	1 h
4	Casey	9	€27	–
5	Balance		€57

AvaWho changed my hours?

No version historyOnly the admin can edit

The machine keeps the rules.

Four steps, each a transaction on the machine’s own account.

3D printer reservation

Member
Alex

Slots
2

Fee
0.50 NEAR

Deposit, refundable
2.00 NEAR

Confirmed on NEAR testnet

01
Reserve
Pay the fee and a refundable deposit to the machine’s own account.
Bridge access check
- Alex has a reservationUnlocked
- Casey has noneRefused
02
Unlock
The bridge unlocks only for a valid on-chain reservation.
Nozzle clean task

Done by
Ava

Verified by
Mark

Status
Rewarded

03
Upkeep
The machine’s agent opens a task only when telemetry crosses a rule. Another member verifies.
Paid with a usage right

Member
Ava

Fee
0.00 NEAR

Right
Consumed after the print

04
Earn access
The maintainer receives 2 usage rights and books the machine with them, fee-free.

Five machines, five kinds of care.

Each one follows its own rules, on the same contract.

Makerspace 3D printer

The printer asks for care.

Nozzle time crosses its rule. Ava cleans it, Mark verifies, Ava earns 2 usage rights.
1. Printertelemetry
  
  Nozzle time crosses the cleaning rule
  
  Lowered to 30 min of printing for the demo
2. Agentoperations agent
  
  Opens the nozzle task
  
  reward 2 usage rights
3. Avamember
  
  Cleans the nozzle; the bridge runs a calibration print
  
  work submitted
4. Markverifier
  
  Approves the work
  
  Ava earns 2 usage rights
Simulated, with a demo threshold of 30 min of printing (normally 200 h)

Usage rights earned by Ava
2
Non-transferable NEP-171 tokens
Dorm laundry washer

A fault stops the washer.

Alex reports a fault. Bookings stop until a repair is done and verified.
1. Alexmember
  
  Reports a fault after his wash
  
  fault report accepted
2. Ninasteward
  
  Takes the washer out of service
  
  new bookings refused
3. Caseymember
  
  Cancels his booking, then repairs the washer
  
  booking refunded 0.2 NEAR
4. Oscarverifier
  
  Approves the repair
  
  Service restored, Casey earns 3 usage rights
Simulated

Washer
Back in service
Repair verified on chain
Workshop laser cutter

Locked until you are trained.

Zoe is refused without laser safety. Ava trains her, Mark approves, the plug turns on.
1. Zoemember
  
  Tries to book without the credential
  
  refused, payment refunded
2. Avatrainer
  
  Proposes Zoe’s laser training
  
  On NEAR testnet
3. Markverifier
  
  Approves the training
  
  Credential issued, Ava earns 1 usage right
4. Zoemember
  
  Books; the plug powers on for her session
  
  On NEAR testnet
Simulated

Credential for Zoe
laser_safety
Non-transferable NEP-171 token
Neighbourhood fridge

Cleaning comes due on schedule.

The weekly clean cannot open early. Once the interval passes, the agent opens it.
1. Agentoperations agent
  
  Tries to open the clean too early
  
  refused: not due yet
2. Scheduleprofile rule
  
  The interval passes
  
  Lowered to 1 h for the demo
3. Agentoperations agent
  
  Opens the cleaning task
  
  reward 2 usage rights
Simulated, with a demo threshold of 1 h (normally every week)

Cleaning task
Open
Reward 2 usage rights
Co-op emergency generator

Fuel paid back, within a cap.

Test run under load every 30 days, then a receipt-backed refill, capped at 1 NEAR.
1. Generatortelemetry
  
  Runs its test under load
  
  every 30 days
2. Agentoperations agent
  
  Opens a fuel restock task
  
  every 20 L of fuel
3. Memberany member
  
  Refuels and attaches the receipt
4. Verifieranother member
  
  Approves; the machine reimburses
  
  at most 1 NEAR
Example from the profile rules, not deployed on testnet

Restock
Reimbursed ≤ 1 NEAR
Example

Twelve commons, one contract.

Seven more run the same contract, each from its own profile: its fees, its upkeep rules, its credentials.

Co-op tractor

A farming co-op owns it together. Driving it needs the tractor_operator credential, and an oil change earns 4 usage rights.

Booking
1 NEAR per 4 hours

Maintenance
Every 100 engine h

Access
tractor_operator credential

Status: simulator profile
Lab GPU server

A research lab shares one GPU server. Booking needs the gpu_basics credential; a driver update that passes the test suite earns 2 usage rights.

Booking
0.30 NEAR per hour

Maintenance
Every 30 days

Access
gpu_basics credential

Status: simulator profile
Site EV charger

An apartment site shares one charger. Fees fill a float capped at 5 NEAR; everything above it goes to the DAO treasury.

Booking
0.50 NEAR per hour

Inspection
Every 100 sessions

Access
Any member

Status: simulator profile
Street cargo bike

A street shares one bike. When 2 members report it missing, whoever brings it home does the Rebalance and earns a usage right.

Booking
0.20 NEAR per hour

Rebalance
After 2 fault reports

Access
Any member

Status: simulator profile
Rehearsal room

A music collective shares one room. Hosting the weekly open evening is Supervision, and it earns 2 usage rights.

Booking
0.30 NEAR per hour

Supervision
Every week

Access
Any member

Status: simulator profile
School microscope

A school lends it free against a 1 NEAR refundable deposit. Cleaning the optics every 20 loans earns a usage right.

Booking
Free

Cleaning
Every 20 loans

Access
Any member

Status: simulator profile
Tool library ladder

A tool library lends it by the day. Every 25 loans a member inspects it before it goes out again, and earns a usage right.

Booking
0.05 NEAR per day

Inspection
Every 25 loans

Access
Any member

Status: simulator profile
Your commons

Write a profile and pick a device adapter. The contract stays the same.
Read the twelve profiles

Every machine runs against a device simulator or emulator, so anyone can try the full loop without hardware.

Fees in. Upkeep out.

Each machine keeps a capped float. Everything above the cap goes to the community DAO.

3D printerMakerlab

2.60/ 3.00 NEAR
Laser cutterMakerlab

1.15/ 3.00 NEAR
WasherDorm B

0.80/ 1.00 NEAR
Community fridgeDorm B

0.55/ 1.00 NEAR

1.70 NEARin fees paid to the machines

0.70 NEARabove the caps, swept to 2 community DAOs

2.00 NEARdeposit refunded in full. Deposits are never spent.

Earned access, never taken back.

Maintain the machine, have another member verify it, and earn rights no method can revoke.

The council takes itRefused
Revoke itNo such method
Burn itNo such method

Makerlab

2usage rights

Earned by: Ava
For: Nozzle clean
Verified by: Mark
Valid: 60 days

Check it yourself.

The machines’ accounts, code and transactions are public on NEAR testnet.

0
0 full-access keys

On all 8 machine, community and DAO accounts. No one can sign for them.
- makerlab-ck.sputnikv2.testnetNo keys
- commons.makerlab.commonkit-sxflo.testnetNo keys
- dorm-b-ck.sputnikv2.testnetNo keys
- commons.dorm-b.commonkit-sxflo.testnetNo keys
- printer-01.makerlab.commonkit-sxflo.testnetNo keys
- laser-01.makerlab.commonkit-sxflo.testnetNo keys
- washer-01.dorm-b.commonkit-sxflo.testnetNo keys
- fridge-01.dorm-b.commonkit-sxflo.testnetNo keys
1
1 contract

All 4 machines run the same code. Their code hashes are identical.
- printer-013RpdWfB6MRHyL5wb5ZVFGoKWFLo3uXyDpp592Xdp9g2h
- laser-013RpdWfB6MRHyL5wb5ZVFGoKWFLo3uXyDpp592Xdp9g2h
- washer-013RpdWfB6MRHyL5wb5ZVFGoKWFLo3uXyDpp592Xdp9g2h
- fridge-013RpdWfB6MRHyL5wb5ZVFGoKWFLo3uXyDpp592Xdp9g2h
219
219 transactions

Every reservation, payment and upkeep in this demo is public on the explorer.
- Alex reserves the 3D printerExplorer
- The agent opens the nozzle taskExplorer
- Mark approves Ava’s workExplorer

Read from NEAR testnet by scripts/verify.sh on 10 November 2026.

See the proof

Built on what NEAR provides.

Accounts, keys and governance the protocol already provides.

printer-01.makerlab.commonkit-sxflo.testnet
1. printer-01Machine
2. .makerlabCommunity
3. .commonkit-sxfloDeployment
4. .testnetNetwork
Named accounts
Each machine is an account you can read aloud and look up.
Held by
bridge.commonkit-sxflo.testnet

May call
printer-01.makerlab.commonkit-sxflo.testnet
Methods
mark_session_started
mark_session_finished
report_telemetry
submit_verification_result
Transfers
Not allowed
Function-call keys
The bridge and the agent can call only their own methods, on one machine.
Community treasury

makerlab-ck.sputnikv2.testnet

Code
Sputnik DAO v2, unmodified
Council
3 members

Usage right

right-3

Owner
Ava
Earned for
Nozzle clean
Standard
NEP-171
Transfers
Not allowed

Standard DAO and NFTs
Community money sits in an unmodified Sputnik DAO. Usage rights are NEP-171 tokens.

Open COMMONKIT.

Every machine, its float and its upkeep. No wallet needed to look.

Open COMMONKIT Read the code

Machines that pay their own upkeep.

One spreadsheet. One admin.

Reserve

Unlock

Upkeep

Earn access

The printer asks for care.

A fault stops the washer.

Locked until you are trained.

Cleaning comes due on schedule.

Fuel paid back, within a cap.

Co-op tractor

Lab GPU server

Site EV charger

Street cargo bike

Rehearsal room

School microscope

Tool library ladder

Your commons

Earned access, never taken back.

0 full-access keys

1 contract

219 transactions

Named accounts

Function-call keys

Standard DAO and NFTs

Open COMMONKIT.