cclohmar f0c576c543 feat: transform NextExpense into NextReceipt — receipt saver for warranty & returns

- Replace events+expenses with flat purchases table
- Add warranty_months, return_days, product_name fields
- Remove currency conversion, CSV/PDF reporting, event filing
- Simplify auth (no onboarding/department/profile)
- Update AI extraction prompts for product/warranty info
- Update all branding: templates, install.sh, Makefile, service file

2026-06-21 18:57:29 +00:00

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NextReceipt

AI-Powered Receipt Saver for Warranty & Returns

Save receipts from private purchases to track warranty coverage and return windows. Upload your receipt, get AI-extracted data, and never lose track of your guarantees again.

Features

Passwordless login via email OTP
AI receipt extraction (Gemini / OpenAI-compatible)
Warranty tracking — save product name, store, price, warranty months, return window
Receipt image storage with UUID filenames
Mobile-first PWA — camera capture, installable, works offline
HTMX-powered UI — no SPA framework, server-driven
Pure Go, no CGO — single static binary

Quick Start

cp .env.example .env
# Edit .env with your credentials
go run main.go

Open http://localhost:8080

Tech Stack

Go 1.23+ (pure Go, no CGO)
SQLite via modernc.org/sqlite
HTMX 1.9.10 + vanilla CSS
chi v5 router

Configuration

Variable	Purpose
`AI_PROVIDER`	`gemini` or `openai`
`GEMINI_API_KEY`	Google Gemini API key
`OPENAI_API_KEY`	OpenAI-compatible API key
`AI_MODEL`	Model name (for OpenAI/Ollama)
`AI_BASE_URL`	API base URL
`SMTP_HOST/PORT/USER/PASS`	SMTP credentials (for OTP emails)
`PORT`	Web server port (default 8080)

Install (systemd)

bash install.sh

Updates: bash install.sh -update

License

MIT

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