HMAC SHA256 - Fix 2 errors in library

I need a visual web page or program to monitor and analyze multiple MT5 or MT4 trading accounts. A real-time dashboard (real-time visual interface) is required, including account ID, affiliated broker, trading account balance, real-time order quantity, opening price, ongoing order position, spread, profit, etc. If you have mature development experience or source code, let's have a chat, bro

AI Builder for Automated Accounting & Workflow System (OpenClaude / OpenCloud) We are looking for an experienced AI Builder / Automation Specialist to design and implement an intelligent, largely automated accounting system for our business. --- ### Project Description The goal is to build a workflow where invoices and documents are simply uploaded, and the system independently handles processing, allocation, and