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I spent 13 years making progress-claim invoices in Excel at a UAE joinery firm, so I built my own accounting software

For 13 years I did the paperwork at a joinery and fit-out firm in the UAE. Every month: build the IPC invoice in Excel, take off the advance, hold the retention, work out 5% VAT, print it in Arabic for the main contractor, and hope it isn't rejected. The accounting software we had only helped with tax. So, evenings and weekends since June 2025, I built Mizarah, accounting made for these workshops: quotation → VAT tax invoice in one step progress claims that recover the advance and hold

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痛点：阿联酋小型木工/装修承包商的进度款（IPC）发票必须手工在 Excel 里做：扣预付款、留质保金、算 5% VAT、再打印阿拉伯语版本给总包，现有会计软件只解决报税，不解决这套行业专用计费流程。

目标用户：阿联酋（及海湾地区）中小型木工、装修、fit-out 承包商老板和其财务/文员

证据：Every month: build the IPC invoice in Excel, take off the advance, hold the retention, work out 5% VAT, print it in Arabic for the main contractor, and hope it isn't rejected. / 3 workshops are on free trials and none pay yet. That's the honest part. / How would you find your first 10 paying customers in a niche this narrow?

变现：垂直 SaaS 订阅，按公司收费约 USD 49/月（可加席位档位），叠加阿联酋 VAT 201 申报、双语单据模板等增值模块；后期可做实施/迁移一次性收费。

MVP：2 周内只做最痛的一环：进度款发票引擎——录入合同额、预付款、质保金比例，自动按完工百分比恢复预付款、扣留质保金、计算 5% VAT、拒绝超额开票，并一键输出英文/阿拉伯语双版 PDF；先不做总账和工资。

竞品：Zoho Books、QuickBooks、Xero、Tally、Odoo、Rocket / 建筑行业 billing 插件

摘要：一位在阿联酋木工装修公司做了 13 年文书工作的独立开发者，用业余时间（2025 年 6 月起）独自开发了 Mizarah，专做这类车间的报价、进度款发票、预付款回收、质保金扣留、双语单据和阿联酋 VAT 申报，技术栈 Next.js + PostgreSQL + Claude。产品已上线，3 家车间在免费试用，尚无付费用户，作者正征求如何找到前 10 个付费客户以及按公司 49 美元/月还是按用户定价的建议。