Separate campus and operating design study. Follow the people in SOS Living →

Tusita / A living systems study

A place that grows
its own possibility.

Imagine a resort that helps build the people, tools and systems that sustain it. Every room, meal, lesson and repair becomes part of the same living story.

This is Tusita as a worked proposal: a conceptual campus, a detailed build path and an open simulation. The first capital, land agreements and human skill must come from somewhere. What follows is how the system could turn them into a place able to keep going.

24 guest units / starting assumption24 resident workers / modeled team25 connected organs / including 8 new proposals1 shared life / the reason for it all

01 / See the whole place

Heaven on Earth has infrastructure.

OCEAN EDGENTUSITA / CONCEPT CAMPUSILLUSTRATIVE · NOT A SITE SURVEY · NOT TO SCALE01020304050607

02 / Campus system

The commons

A shared kitchen, gathering spaces, reception, care room and cultural life. Hosting supports the place; residents help determine how it is lived in.

Explore its role

02 / From intention to a place that works

It builds through people.
It learns through the work.

Otto translates a shared intention into connected tasks. Manifest makes needs visible. Koink.Fun can gather capital around verified milestones. People and supervised agents turn those resources into an operating place.

Select a stage to inspect its work, evidence and hold points. The 18-month sequence is illustrative; packages overlap, and real approvals determine the pace.

Otto Steward + SOS Systems

The first guest is the start of the test.

Open only after the site, services, people and funding are ready together. Daily evidence now replaces construction assumptions, and operating income can support the next round of needs.

  • Pay people and suppliers; fund routine care and maintenance. Transfer an explicit asset-renewal allowance and retain a cash buffer before setting anything aside for expansion.
  • Review service incidents, resident experience, water and energy imports, repairs and learning. Give less visible work a funded responsibility and evidence record without pretending to have solved its impact score.
  • Put the next need back into Manifest. A later cluster only proceeds after its funding, infrastructure, ecology and human approvals pass their own review.
EVIDENCE BEFORE ACCEPTANCE
Reconciled accounts, operating measurements, care records, asset condition, reviewed incidents and an auditable decision about what to improve next.
WHO EXAMINES IT
Residents, operating teams and independent reviewers under a proposed SOS decision process. ONEON’s eventual record infrastructure remains to be selected.
WHAT CAN HOLD THE NEXT STEP
Growth pauses when care is underprovided, essentials fail or the cash buffer is not funded. In this model, a funded expansion reserve is readiness to review, not permission to build.

Seeded from outside.
Sustained through usefulness.

Initial land access, capital, materials and expertise have to be secured. Koink.Fun does not create those resources from nothing. Its role is to organise support around work with agreed terms and evidence.

Later, hospitality, goods, experiences and useful service work could help sustain the place. The simulation counts guest and ancillary spending only, so unproven revenue streams do not quietly rescue the numbers.

Automation earns a wider scope.

Otto can prepare plans, compare scenarios, coordinate dependencies and draft work packages. People approve consequential decisions, qualified professionals sign off their domains and trained operators control physical work.

Open, automated manufacturing is the direction. The first test is a workshop that can make an inspected part, teach its method and repair it later.

03 / Put the idea under pressure

A beautiful idea should survive a difficult month.

Change the resort. Challenge its assumptions. Follow the effect on operating cash, water, energy and the capacity to build again.

Illustrative inputs in USD · 24 operating months after construction · fictional seasons. These are scenario assumptions, not site data, supplier quotes or a forecast.

Two operating years with a fictional seasonal pattern. Change the assumptions and watch the dependencies move.

Capital needed to open

$3.67MBuild + 15% contingency + $300k opening cash

Year-one operating balance

$693.5KBefore renewal transfers, tax and finance

Energy served on site

99.2%Two-year daily balance; hourly reliability untested

Reserved for the next build

$436.21KAfter 24 operating months; separate from renewals

Keep the place alive before it grows.

Three separate balances: cash available to operate, money reserved to replace assets, and money set aside for a later build. Construction completes in month 18; the first operating month is M19.

Available cashAsset renewalNext build
$0$433K$867K$1.3MM19M24M30M36M42
Guest revenue
$154,846
Operating costs
$80,869
Available cash
$494,846
To asset renewal
$7,330
To the next build
$0
Service days lost
0
Where the opening capital goes
Illustrative work-package budgets, not supplier quotations.
PackageFundingUSD
Land, rights & feasibilityAllocated$120,000
Access & site preparationAllocated$180,000
Energy, water, food & recoveryAllocated$734,000
Resident homes & maker baseAllocated$566,000
Guest accommodationAllocated$912,000
Kitchen, care, culture & systemsAllocated$340,000
Training & commissioningAllocated$80,000
Construction subtotal$2,932,000
Contingency held separately$439,800
Minimum opening cash$300,000
Total required$3,671,800

Packages are treated as funded in sequence only after reserving contingency and opening cash. Real procurement may overlap, and acceptance evidence controls actual release. A commissioning hold consumes $0 of contingency here, leaving $439,800.

Budget coefficients: guest units $38k each; 24 resident homes $14k each; solar $1,100/kW; battery $450/kWh; water base $120k plus $600/m³ storage; growing infrastructure $75k/ha. Other packages are visible fixed allowances. Land purchase, debt, tax and investor returns are excluded.

Open the assumptions and equations

Revenue: available units × seasonal occupancy × days × (room rate + two guests × $35 ancillary spending). Demand is a continuous average; partial room-nights are expected values, not actual bookings. Any modeled service-loss day is refunded.

Costs: $48k/month fixed + $45 per occupied room-night + 4% booking/payment allowance + imported electricity at $0.25/kWh + water at $8/m³ + extra labour at $14/hour. Fixed costs include people, $3k protected care, base growing, supplies, administration, lease/insurance and logistics allowances. Crop shortfalls sit within the broad food purchasing allowance; there is no detailed commodity-price model.

Illustrative fixed monthly allowances. Replace these with local staffing, employment, supply and insurance costs before assessing a site.
Operating needUSD / month
Resident team: pay and employment-cost allowance$24,000
Protected care and support$3,000
Resident meals, base kitchen and growing supplies$6,000
Land access / lease and insurance$6,000
Logistics and base operating supplies$4,000
Connectivity, software and administration$3,000
Workshop and routine maintenance inputs$2,000
Total fixed allowance$48,000

Renewal: 3% of construction cost per year, transferred monthly only from available cash. Growth: up to 40% of positive operating balance after renewal, only after three complete operating months and subject to the cash, care, renewal and service gates. Any accumulated renewal shortfall pauses growth; this version does not model catching up missed transfers. These transfers are reserves, not additional expenses or investor returns.

Energy: 180 kWh/day shared + 4 kWh/resident + 15 kWh/occupied unit. Daily solar yield uses the fictional seasonal series below. 55% of demand is daytime. The battery carries charge between days, has 80% usable capacity and 90% charging efficiency. No grid charging is modeled.

Water: 140 L/person/day + 2 m³/day shared use + 2.5 m³/ha/day irrigation. Roof area is 900 m² + 55 m²/unit; rain capture is 80%. Suitable non-potable recovery is capped at 30% of domestic/shared use and at irrigation demand. Tanks begin empty; any external supply is counted. Water quality is assumed validated for each use and is not simulated.

Vegetables: 350 g/person/day demand, with an assumed 22 kg/ha/day growing yield, reduced during the dry scenario. This simplified balance does not model nutrients, pests, food security or the nutritional completeness of a diet.

Care: 64 core task-hours/day + two per occupied unit + scheduled care/upkeep. Hours below 32 accumulate as deferred work. Paid capacity remains fixed; assigning more work adds labour cost when capacity is exceeded.

Fictional 12-month season; repeated in year two. No location is implied.
MonthSolar kWh/kW/dayRain mmDemand factor
14.5701.1
24.7501.1
34.41001
44.11700.85
53.52200.8
63.12600.75
73.61900.8
841400.9
94.11800.95
103.72301
113.22501.1
123.81601.2

The model uses 365 days per operating year and equal fixed monthly costs. It excludes a detailed construction cash-flow schedule, interest, taxation, depreciation, investment returns, insurance claims, crop-price changes and future expansion operations. It assumes external supply is available except during the explicit supply break. It is a tool for finding questions, not evidence that a real resort will perform this way.

Inspect the full 24-month ledger
USD, rounded for display. Cash and reserves remain distinct. Unrounded values are included in the scenario download.
MonthRevenueCostsTo renewalTo next buildCash remaining
M19$154,846$80,869$7,330$0$494,846
M20$139,861$77,681$7,330$0$549,696
M21$140,769$77,296$7,330$22,457$583,381
M22$115,794$71,241$7,330$14,889$605,715
M23$112,615$70,603$7,330$13,873$626,524
M24$102,171$68,507$7,330$10,533$642,324
M25$112,615$70,603$7,330$13,873$663,133
M26$126,692$73,429$7,330$18,373$690,693
M27$129,416$73,976$7,330$19,244$719,559
M28$140,769$76,254$7,330$22,874$753,870
M29$149,851$78,452$7,330$25,627$792,311
M30$168,923$81,905$7,330$31,875$840,123
M31$154,846$79,919$7,330$27,038$880,681
M32$139,861$77,681$7,330$21,940$913,591
M33$140,769$77,296$7,330$22,457$947,276
M34$115,794$71,241$7,330$14,889$969,609
M35$112,615$70,603$7,330$13,873$990,418
M36$102,171$68,507$7,330$10,533$1,006,219
M37$112,615$70,603$7,330$13,873$1,027,028
M38$126,692$73,429$7,330$18,373$1,054,587
M39$129,416$73,976$7,330$19,244$1,083,454
M40$140,769$76,254$7,330$22,874$1,117,765
M41$149,851$78,452$7,330$25,627$1,156,206
M42$168,923$81,905$7,330$31,875$1,204,018
Total / closing$3,188,640$1,800,687$175,920$436,215$1,204,018
Inspect or copy the scenario JSON

The same inputs, assumptions and unrounded results used by the download. You can select and copy them here if your browser blocks file downloads.

{
  "model": "Tusita living model v1",
  "kind": "illustrative, uncalibrated scenario",
  "scope": "24 operating months after a conditional funded build",
  "scenario": "base",
  "inputs": {
    "rooms": 24,
    "occupancy": 65,
    "nightlyRate": 210,
    "solarKw": 160,
    "batteryKwh": 400,
    "tankM3": 180,
    "growingHa": 1.2,
    "careHours": 32,
    "seedCapital": 3800000
  },
  "assumptions": {
    "residents": 24,
    "guestsPerRoom": 2,
    "paidHoursPerDay": 144,
    "fixedMonthlyCost": 48000,
    "protectedCareMonthly": 3000,
    "variableCostPerRoomNight": 45,
    "ancillaryPerGuestNight": 35,
    "bookingPaymentAllowance": 0.04,
    "importedKwhCost": 0.25,
    "importedWaterM3Cost": 8,
    "extraLaborHourlyCost": 14,
    "coreLaborHours": 64,
    "roomLaborHours": 2,
    "requiredCareHours": 32,
    "sharedKwhPerDay": 180,
    "residentKwhPerDay": 4,
    "roomKwhPerDay": 15,
    "daytimeLoadShare": 0.55,
    "batteryUsableShare": 0.8,
    "batteryChargeEfficiency": 0.9,
    "domesticM3PerPerson": 0.14,
    "sharedWaterM3PerDay": 2,
    "irrigationM3PerHaDay": 2.5,
    "rainCaptureEfficiency": 0.8,
    "roofM2PerRoom": 55,
    "sharedRoofM2": 900,
    "nonPotableRecoveryShare": 0.3,
    "tankReserveShare": 0.15,
    "vegetablesKgPerPersonDay": 0.35,
    "gardenKgPerHaDay": 22,
    "contingencyShare": 0.15,
    "openingCashFloor": 300000,
    "annualRenewalShare": 0.03,
    "growthShare": 0.4,
    "openingMonth": 18,
    "delayMonths": 3,
    "delayMonthlyCost": 18000,
    "nextClusterCost": 400000
  },
  "fixedCostAllowances": [
    {
      "label": "Resident team: pay and employment-cost allowance",
      "amount": 24000
    },
    {
      "label": "Protected care and support",
      "amount": 3000
    },
    {
      "label": "Resident meals, base kitchen and growing supplies",
      "amount": 6000
    },
    {
      "label": "Land access / lease and insurance",
      "amount": 6000
    },
    {
      "label": "Logistics and base operating supplies",
      "amount": 4000
    },
    {
      "label": "Connectivity, software and administration",
      "amount": 3000
    },
    {
      "label": "Workshop and routine maintenance inputs",
      "amount": 2000
    }
  ],
  "seasons": {
    "days": [
      31,
      28,
      31,
      30,
      31,
      30,
      31,
      31,
      30,
      31,
      30,
      31
    ],
    "sun": [
      4.5,
      4.7,
      4.4,
      4.1,
      3.5,
      3.1,
      3.6,
      4,
      4.1,
      3.7,
      3.2,
      3.8
    ],
    "rain": [
      70,
      50,
      100,
      170,
      220,
      260,
      190,
      140,
      180,
      230,
      250,
      160
    ],
    "demand": [
      1.1,
      1.1,
      1,
      0.85,
      0.8,
      0.75,
      0.8,
      0.9,
      0.95,
      1,
      1.1,
      1.2
    ]
  },
  "results": {
    "input": {
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      "occupancy": 65,
      "nightlyRate": 210,
      "solarKw": 160,
      "batteryKwh": 400,
      "tankM3": 180,
      "growingHa": 1.2,
      "careHours": 32,
      "seedCapital": 3800000
    },
    "scenario": "base",
    "budget": {
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          "label": "Land, rights & feasibility",
          "amount": 120000,
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          "cumulative": 120000,
          "funded": true
        },
        {
          "id": "ground",
          "label": "Access & site preparation",
          "amount": 180000,
          "months": "04–06",
          "cumulative": 300000,
          "funded": true
        },
        {
          "id": "utilities",
          "label": "Energy, water, food & recovery",
          "amount": 734000,
          "months": "07–09",
          "cumulative": 1034000,
          "funded": true
        },
        {
          "id": "makers",
          "label": "Resident homes & maker base",
          "amount": 566000,
          "months": "07–12",
          "cumulative": 1600000,
          "funded": true
        },
        {
          "id": "stays",
          "label": "Guest accommodation",
          "amount": 912000,
          "months": "10–15",
          "cumulative": 2512000,
          "funded": true
        },
        {
          "id": "commons",
          "label": "Kitchen, care, culture & systems",
          "amount": 340000,
          "months": "13–17",
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          "funded": true
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        {
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          "months": "18",
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      "contingency": 439800,
      "required": 3671800,
      "fundingGap": 0,
      "openingCash": 428200
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    "openingMonth": 18,
    "delayCost": 0,
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    "months": [
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        "renewal": 7330,
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        "waterDemand": 414.00566220450014,
        "rainCaptured": 124.32000000000006,
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      {
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        "renewalTarget": 7330,
        "growth": 31874.94940472803,
        "energyDemand": 17605.42181714611,
        "solarGenerated": 18848,
        "directSolar": 9682.98199943036,
        "batteryCharged": 8874.308047723027,
        "batteryDelivered": 7922.4398177157445,
        "batteryEnd": 64.43742523497582,
        "curtailed": 290.70995284660967,
        "importedEnergy": 0,
        "unmetEnergy": 0,
        "waterDemand": 428.08254058672753,
        "rainCaptured": 284.15999999999997,
        "rainUsed": 335.0825405867274,
        "reusedWater": 93,
        "importedWater": 0,
        "unmetWater": 0,
        "tankEnd": 118.72243805183716,
        "spilledWater": 0,
        "vegetablesNeeded": 682.7063514668184,
        "vegetablesGrown": 682.7063514668184,
        "extraLaborHours": 0,
        "deferredCareHours": 0,
        "serviceDaysLost": 0
      }
    ],
    "cash": 1204017.9944069493,
    "minimumCash": 428200,
    "totalRenewal": 175920,
    "totalGrowth": 436214.73380096833,
    "careBacklog": 0,
    "yearOneRevenue": 1594320,
    "yearOneCosts": 900818.5256482485,
    "yearOneBalance": 693501.4743517516,
    "energyCoverage": 99.19395245501782,
    "waterCoverage": 89.32963695671788,
    "vegetableCoverage": 100,
    "importedEnergy": 3000.915009968674,
    "importedWater": 991.4303799487327,
    "serviceDaysLost": 0,
    "renewalShortfall": 0,
    "expansionReady": true
  },
  "limitations": [
    "No selected site, supplier quotes or observed operating data.",
    "Daily energy and water accounting, not hourly reliability or water-quality validation.",
    "Costs exclude land acquisition, tax, financing, depreciation and investor returns.",
    "Growth reserves do not add guest units inside this simulation.",
    "External electricity and water are assumed available except during the modeled supply break."
  ]
}

04 / The system, down to one work order

A water system is a promise
someone has to keep.

Follow a sample commissioning package from need to payment to lifelong maintenance. Every record and amount below is illustrative; it is not a live job or inspection result.

TUS-WTR-014 / SAMPLE WORK PACKAGE

Commission the water system and hand it over.

NEED / MANIFEST

Guest occupancy depends on a validated supply, a functioning treatment process and operators who can respond to a fault. The dependency stays open until the evidence is accepted.

TERMS / KOINK.FUN + SIDEGIGS

An illustrative $4,800 package within the commissioning allowance: $1,800 labour, $1,800 parts and consumables, $600 operator training and $600 independent review. Scope, pay, changes and disputes are agreed before work starts.

DELIVERY / WATER + LOGISTICS + BLOOM

Qualified people commission the approved design. Logistics records the equipment received. Bloom supports supervised operator learning. Otto assembles the evidence package from authorised shared records.

The handover matters as much as the installation.

ACCEPTANCE / INDEPENDENT REVIEW

  • Required quality results reviewed for the intended uses.
  • As-built drawings, equipment identities and operating limits recorded.
  • Alarms, controls and fault-response procedures demonstrated.
  • Operators’ training and responsibilities documented.
  • Maintenance intervals, spares and unresolved defects handed to Steward.

IF A TEST FAILS

The completion payment stays held under the sample milestone terms. A corrective task and review are recorded; the original delivery team does not approve its own evidence. The dependent occupancy gate remains closed.

AFTER ACCEPTANCE / STEWARD + MANIFEST

The asset now has a history and a next inspection. Recurring checks have budgeted time. A quiet month with no incident still contains work worth recording; it does not justify inventing a precise prevented-harm score.

05 / What makes it a living system

The end of one process
becomes the beginning of another.

A guest funds more than a stay

Sky → Tusita → Steward → Manifest

Travel brings a booking. Hospitality delivers it. Income pays staff and suppliers, funds care, replaces worn assets and keeps a buffer. Only a reviewed remainder can support another work package.

A repair becomes shared capability

Manifest → SideGigs → Bloom → Fabrication

A failed fitting becomes a scoped task. A worker delivers a reviewed replacement and teaches its maintenance. The repair record, design and lesson make the next repair easier. The worker and teacher remain visible.

A resource stays useful for longer

Food → Loop → soil; Water → reuse → growing

Separate recoverable materials at source. Return suitable organics through a managed compost process and suitable treated water through a separate non-potable circuit. Track losses, quality limits and the waste that still needs an external route.

An uncomfortable fact changes the plan

Meters + people → Otto → SOS review → Manifest

A dry month, a missed care shift or a rejected inspection is evidence. Otto can compare responses. Accountable people decide, record the reason and create the next task. An appealing simulation does not overrule a failed real-world test.

06 / An ordinary day is the real demonstration

When the system disappears
into a life well lived.

An illustrative operating day. The work is coordinated; the people remain people, with their own lives, boundaries and choices.

The site wakes before the guests

Energy and water operators review overnight state. Steward checks open incidents, staffing, food storage, access and equipment. A predicted shortage becomes a task with an owner, not a silent score.

Breakfast has a supply history

Food and the kitchen reconcile garden harvest with incoming orders. Lumos helps source missing goods; Logistics verifies delivery and cold-chain records. Staff meals and residents’ needs are included.

A maintenance job becomes learning

A SideGigs package has paid scope and an independent acceptance step. A learner works under qualified supervision through Bloom. Fabrication supplies an inspected part; Steward updates the asset’s history.

Arrival is a coordinated handoff

Sky helps guests arrive. The host checks their actual needs and consents. Private capsule details are shared for a specific purpose; the kitchen does not receive someone’s complete personal history.

Culture, quiet and care coexist

Music supports an agreed gathering with clear credits and terms. Residents retain quiet and private space. Maya’s defined service and Panik’s contact pathways have accountable human coverage.

The next day inherits what was learned

Operations reconcile cash, inventory, utility balances and unresolved tasks. Shared context carries forward through Otto. Personal wellbeing and healthcare records stay in their separate access boundaries.

07 / Give the physical world its organs

The pieces the resort
asks us to build.

The original organs coordinate intelligence, identity, resources, funding, work and daily life. A place also needs these physical capabilities. These eight names and scopes are new working proposals introduced through Tusita, open to refinement.

Land arrangements, treasury controls, insurance, inspections and dispute resolution also need explicit responsibility. They belong in the operating and governance design; adding another brand does not replace accountable people or local obligations.

08 / From a convincing model to a trustworthy place

Let the proof be a place
that keeps its promises.

What the model can show

It can make dependencies visible, conserve resource balances, expose an unfunded build and show what the chosen assumptions imply for daily operations. Its calculations are inspectable and downloadable.

It can also show why care, contingency and replacement reserves belong inside the model instead of being added after the attractive numbers.

What the first pilot must establish

  • A suitable site, lawful access, local participation and acceptable ecological impact.
  • Verified costs, construction evidence and a fully funded opening.
  • Safe, reliable services through measured demand and actual weather.
  • Fair working conditions, personal protections and an effective route to challenge a decision.
  • Reconciled operating accounts, funded renewal and a record of care that the people involved recognise.

Here, self-sustaining means developing the capability and recurring income to care for the people, maintain the assets and restore the place. It still has relationships with the wider world: food staples, specialist care, spare parts, transport, materials and backup supplies. Those dependencies should be visible and dependable.

Design references, not performance endorsements

The study uses established hotel sustainability, infrastructure and water-management references to check the scope of the questions. The numerical assumptions are authored for this example and are not taken from these sources.

The next contribution can be specific.

Bring one piece of the real world
into the model.

A water balance. A construction package. A care roster. A local food network. A fair way to resolve a dispute. Help replace an assumption with something people can inspect and use.

Help shape Tusita