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# SiMS Next — Store Management Suite (Rebuild)
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A ground-up rebuild of SiMS Store Software: GST-compliant retail management for India —
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inventory, POS billing, purchases, and accounting — for everything from a single-counter
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kirana shop to multi-outlet supermarket chains.
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**Why the rebuild:** the current product runs on Oracle Forms & Reports (hard to maintain,
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buggy, no path to cloud/multi-store), and the market is moving. Same customers, much better
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product.
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**North star:** the fastest, easiest counter workflow in the market. The customer in line
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never waits because of the software, and purchase entry is never a burden.
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## Build state (start here)
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This is now a working codebase, not just a plan. Current state, run instructions, and the
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live-vs-wireframe breakdown live in **[STATUS.md](STATUS.md)** and **[BUILDING.md](BUILDING.md)**.
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In brief: a web-app POS + back office served by a Node store-server over a portable data
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layer (SQLite dev slice; Oracle 12c adapter pending the Classic DDL). Live and verified
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end-to-end: billing (keyboard-first, offline-capable, B2B/IGST), purchases with batch/
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expiry, returns/credit notes, and GST returns (GSTR-1/3B). A full adversarial security
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review + P0–P2 remediation is complete — see [docs/18-RED-TEAM-REVIEW.md](docs/18-RED-TEAM-REVIEW.md).
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## Planning documents
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| Doc | What it covers |
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|-----|----------------|
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| [docs/00-VISION.md](docs/00-VISION.md) | Product vision, segments/editions, business model, success metrics |
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| [docs/01-SCOPE.md](docs/01-SCOPE.md) | Full module & feature catalog with priorities and edition mapping |
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| [docs/02-ARCHITECTURE.md](docs/02-ARCHITECTURE.md) | Offline vs online vs hybrid analysis, sync design, tech stack, multi-tenancy |
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| [docs/03-FRONTEND.md](docs/03-FRONTEND.md) | App surfaces, counter UX principles, screen inventory, design system |
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| [docs/04-ROADMAP.md](docs/04-ROADMAP.md) | Phased build plan with exit criteria, pilot & migration strategy |
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| [docs/05-CHECKLIST.md](docs/05-CHECKLIST.md) | Master build checklist, grouped by area |
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| [docs/06-DECISIONS.md](docs/06-DECISIONS.md) | Open decisions that need a founder call, with recommendations |
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| [docs/07-DB-AND-CONFIG.md](docs/07-DB-AND-CONFIG.md) | Everything-in-DB design (messages, plans, settings), local DB engine analysis (D12) |
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| [docs/08-MARKET-ARCHITECTURES.md](docs/08-MARKET-ARCHITECTURES.md) | How Tally/Marg/GoFrugal/Vyapar & global players architect; Android POS conclusion |
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| [docs/09-UX-FLOWS-AND-MENUS.md](docs/09-UX-FLOWS-AND-MENUS.md) | Screen-level UX blueprint: POS flows, back-office menu tree, Purchase Inbox, owner app |
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| [docs/10-ISSUES-REGISTER.md](docs/10-ISSUES-REGISTER.md) | Consolidated failure-mode register across 6 lenses, with Top-10 risk ranking |
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| [docs/11-ADMIN-SUPPORT-CONSOLE.md](docs/11-ADMIN-SUPPORT-CONSOLE.md) | Settings hierarchy, tenant Admin review, and the vendor-side HQ/support console |
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| docs/13-SPEC-*.md | Keystroke-level specs: billing polish + purchase entry (P1/P2 backlog) |
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| [docs/14-SPEC-HQ-CONSOLE.md](docs/14-SPEC-HQ-CONSOLE.md) | HQ ops console for the Classic client base (D15, apps/hq) |
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| [docs/15-EDITIONS.md](docs/15-EDITIONS.md) | Lite/Standard/Pro/Enterprise: privileges, limits, costs — all configurable DB rows |
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| [docs/16-PROJECT-RULES.md](docs/16-PROJECT-RULES.md) | The 26 hard rules (Tables Rule, money rules, config-over-code, counter rules) |
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| [docs/17-SCALE-AND-INTEGRATIONS.md](docs/17-SCALE-AND-INTEGRATIONS.md) | The 7 committed scale gaps + full integrations catalog with status |
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| [docs/18-RED-TEAM-REVIEW.md](docs/18-RED-TEAM-REVIEW.md) | Adversarial security review + remediation record (all findings closed) |
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| [DEPLOY-HQ.md](DEPLOY-HQ.md) | Go-live runbook for the HQ ops console (apps/hq) |
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Start with STATUS.md for what's built; then 00-VISION, 02-ARCHITECTURE, 04-ROADMAP for the plan.
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