CalcuOnline
HomeTech Tutorials & ReviewsTech Tutorials
Tech Tutorials

All Tutorials

12 step-by-step technical tutorials — real working code, not marketing copy.

AllFinance & Business (3)Developer Tools (6)Health & Medical (3)
How to Build a HIPAA-Compliant AI Medical Scribe App Using AWS Bedrock and Python
How to Build a HIPAA-Compliant AI Medical Scribe App Using AWS Bedrock and Python
Tutorial
A reference architecture and working Python implementation for an ambient AI scribe that transcribes clinician-patient visits and drafts SOAP notes inside…
Read Tutorial → Health & Medical
Fine-Tuning a Llama 3 Model for Automated Clinical Documentation and EHR Integration
Fine-Tuning a Llama 3 Model for Automated Clinical Documentation and EHR Integration
Tutorial
A practical walkthrough of QLoRA fine-tuning for Llama 3 8B on de-identified clinical note pairs, plus a FHIR-based integration layer for pushing structur…
Read Tutorial → Health & Medical
Deploying a Secure DICOM Medical Image Classification API on Google Cloud Vertex AI
Deploying a Secure DICOM Medical Image Classification API on Google Cloud Vertex AI
Tutorial
Build and deploy a DICOM-aware image classification service on Vertex AI, covering de-identification, containerized preprocessing, model serving, and IAM-…
Read Tutorial → Health & Medical
Building a Real-Time Algorithmic Trading Bot Using LLMs and the Alpaca Markets API
Building a Real-Time Algorithmic Trading Bot Using LLMs and the Alpaca Markets API
Tutorial
A reference implementation for a paper-trading bot that combines a rules-based signal engine with an LLM news-sentiment filter, executed through the Alpac…
Read Tutorial → Finance & Business
Training a Custom Financial Sentiment Model for Stock Market Prediction Using Hugging Face
Training a Custom Financial Sentiment Model for Stock Market Prediction Using Hugging Face
Tutorial
Fine-tune a FinBERT-based classifier on labeled financial headlines using Hugging Face Transformers, then wrap it in a serving API that outputs a daily se…
Read Tutorial → Finance & Business
Automating Financial Statement Auditing and Risk Assessment Using RAG and LangChain
Automating Financial Statement Auditing and Risk Assessment Using RAG and LangChain
Tutorial
A RAG pipeline that grounds an LLM in a company's financial statements and prior-year audit notes to flag anomalies, ratio red flags, and disclosure incon…
Read Tutorial → Finance & Business
Building a Production-Ready RAG Pipeline with LangChain, Pinecone, and OpenAI
Building a Production-Ready RAG Pipeline with LangChain, Pinecone, and OpenAI
Tutorial
A complete retrieval-augmented generation pipeline covering chunking strategy, Pinecone indexing with metadata filters, hybrid retrieval, and a FastAPI se…
Read Tutorial → Developer Tools
Optimizing AI Model Inference Latency in Production Using NVIDIA Triton Inference Server
Optimizing AI Model Inference Latency in Production Using NVIDIA Triton Inference Server
Tutorial
Deploy a model behind NVIDIA Triton with dynamic batching, concurrent model instances, and ONNX Runtime acceleration, then measure and tune p99 latency un…
Read Tutorial → Developer Tools
Setting Up Automated LLM Evaluation Pipelines for Hallucination Detection Using Ragas
Setting Up Automated LLM Evaluation Pipelines for Hallucination Detection Using Ragas
Tutorial
Wire Ragas metrics (faithfulness, answer relevancy, context precision/recall) into a CI-runnable evaluation pipeline that scores a RAG system against a go…
Read Tutorial → Developer Tools
Implementing Secure JWT Authentication and Role-Based Access Control in Next.js
Implementing Secure JWT Authentication and Role-Based Access Control in Next.js
Tutorial
A complete JWT auth implementation for the Next.js App Router using httpOnly cookies, access/refresh token rotation, middleware-based route protection, an…
Read Tutorial → Developer Tools
How to Audit and Fix OWASP Top 10 Security Vulnerabilities in a Node.js Enterprise API
How to Audit and Fix OWASP Top 10 Security Vulnerabilities in a Node.js Enterprise API
Tutorial
A practical audit checklist and remediation code for the OWASP Top 10 (2021) as they actually show up in a typical Express/Node.js enterprise API, with be…
Read Tutorial → Developer Tools
Setting Up an Automated CI/CD Deployment Pipeline via GitHub Actions to AWS ECS
Setting Up an Automated CI/CD Deployment Pipeline via GitHub Actions to AWS ECS
Tutorial
A production CI/CD pipeline that builds a Docker image, scans it for vulnerabilities, pushes to ECR, and deploys to ECS Fargate with zero-downtime rolling…
Read Tutorial → Developer Tools
← Back to Tech Tutorials & Reviews ★ Browse Reviews →