ERPNext is the only system of record; we build tools on it

User (October 2026): we only build tools and interfaces that interact
with ERPNext; invoices, stock and the rest are kept there, except
telemetry and other machine data.

digital-factory.md: standing decision, decisions 2, 3, 6, 7 and 10
rewritten (ERPNext holds every record of the business and of production,
including artist gates, metal-part genealogy as serial numbers with
parents, and quality inspections; the machine-data store keeps only
cycle and record rows, the hash chain and time series, keyed to ERPNext
names; ERPNext first, then custom fields or document types in cnx_erp,
then a tool, never a second business database). Systems table,
architecture labels, factory application section (modules as a table:
records in ERPNext, what we build, machine data outside; our only tables
are the machine-data ones), ownership table, integration rules 4 and 8,
phasing and estimates (cnx_erp app 2 to 3 person-months; total 3.5 to 6).
artist-platform.md: campaigns are an ERPNext document from launch, pledges
post as advance payment entries; traceability, README, facility security
(archive location on the serial number), production timeline (sets per
mother on the mother's serial number), crane-workshop spares store,
total-investment.

Factory console: KPI row no longer touches the postings card (user
screenshot); ERPNext page, order card, sidenote and ledger say every
record lives in ERPNext and only machine data stays outside; new
postings for artist gates, stamper metrology inspections, stamper set
serial numbers (grown, retired with play count). Checked headless:
Edge dark and light, 1440/1024/390, no overflow or page errors, rows
aligned, pw_fc, pw_wo, pw_feed and pw_erp pass.

docs/finance/total-investment.md

@@ -50,7 +50,7 @@ building, software and stamper prep lines, and the contingency on top).
 | Press fleet changed (October 2026) to two Newbilt Duplex systems (two presses each, EX 50 main extruder and EX 35 colour extruder) plus one Newbilt Classic, replacing the two blocks above (930k – 1,290k): Duplex system 1 as the first block (350k – 370k; the quote's second-extruder option becomes the EX 35), system 2 ~230k – 300k (two presses at the quoted ~115k per press and extruder set as the yardstick, plus hydraulic unit and EX 35, estimate; no EX 35 price on file), the Classic ~290k – 460k (the AD12 band per press as a placeholder; no Newbilt price on file) | −60k (low case) / −160k (high case) | −2.0M / −5.3M | estimate, [pressing line](../equipment/pressing-line.md); the Newbilt re-quote replaces it. The utilities for five presses are re-sized in the row below |
 | Utilities re-sized for the five-press fleet (October 2026): boiler bank 2 × 500 kg/h, chiller bank 3 × 250 kW with plate heat exchanger and tanks, larger softener and loop treatment ([steam and cooling](../steam-cooling.html)) | +185k (low case) / +294k (high case) | +6.1M / +9.7M | estimate, [utilities CSV](utilities-investment.csv) re-based from 24.0M – 41.6M to 30.1M – 51.3M THB |
 | Utility yard built for four boiler and four chiller modules (October 2026): yard ~379 m² against 178 m² ([scale](../scale.md#detached-utility-yard-parking-and-what-that-moves)) | 73k – 122k | 2.4M – 4.0M | estimate: the building rate above on the ~200 m² the yard grows by; the open chiller compound costs less than a building, so this is the cautious end. The valved branches and feeders for the empty positions are not priced yet |
-| ERPNext for the whole plant (October 2026): configuration with Thai tax, integration with every tool, Nix packaging; `vinyl-erp` server | to quote | to quote | not in the sum: 3 to 5.5 person-months in-house or a partner quote (Ecosoft), plus 2k to 4k USD hardware ([digital factory](../digital-factory.md#erpnext-the-plants-erp)); no licence fee |
+| ERPNext for the whole plant (October 2026): configuration with Thai tax, integration with every tool, Nix packaging; `vinyl-erp` server | to quote | to quote | not in the sum: 3.5 to 6 person-months in-house or a partner quote (Ecosoft), plus 2k to 4k USD hardware ([digital factory](../digital-factory.md#erpnext-the-plants-erp)); no licence fee |
 | Archive mobile shelving for the father and mother archive (October 2026) | to quote | to quote | not in the sum: A-Z Solutions publishes no prices; quote it and a Thai supplier ([facility security](../facility-security.md#archive-room-mobile-shelving)) |
 | **Added so far** | **~678k – 1,027k** | **~22.3M – 33.9M** | about 13 to 17% on the full-vision subtotal |