Sequential Testing and the SPRT: How to Stop a Test Early Without Cheating
Sequential Testing and the SPRT: How to Stop a Test Early Without Cheating Meta description: Peeking at a fixed-sample A/B test inflates false positiv…
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The Confidence Tier Model: How to Decide When Your Data Isn't Enough
The Confidence Tier Model: How to Decide When Your Data Isn't Enough Meta description: Most testing programs are built for traffic they don't have. Th…
AI Analytics Row-Level Security: Let Users Ask Questions Without Leaking Data
The dangerous part of AI analytics is not that a model may write a bad chart title. It is that one friendly question can turn into a warehouse query y…
A Weekly AI Coding Report Is an Activity Ledger, Not a Productivity Score
A week of Claude Code and Codex work leaves enough local evidence to answer concrete questions. When were sessions active? Which provider produced the…
Firebase Analytics in React Native — Complete Implementation Guide
Analytics is one of the most valuable tools you can add to a mobile application. While building features is important, understanding how users interac…
Day 96/100 – Standard SQL Time Functions in ClickHouse® 26.3: Better ANSI SQL Compatibility
Introduction One of the key goals of recent ClickHouse® releases has been improving compatibility with the ANSI SQL standard. While ClickHouse has alw…
Active players looked real until we asked which sessions counted
I've been building Codenames AI , a small web game where an LLM plays Codenames with you. Like most solo products, I glance at a Product Health dashbo…
Day 88 - Upgrading to ClickHouse® 26.3 LTS: A Step-by-Step Safe Guide
Introduction Upgrading a database is much more than installing a newer version. It requires careful planning to preserve data integrity, maintain appl…
How to Build Consistent UTM Links for Marketing Campaigns
UTM parameters are one of the simplest ways to understand where website traffic comes from. They help marketers identify which campaign, platform, pos…
Day 84: EXPLAIN `pretty=1` and `compact=1` in ClickHouse® 26.3
When a ClickHouse® query runs slowly, the root cause is not always insufficient hardware or an inefficient schema. In many cases, the issue lies in th…
How to Build Customer-Facing Analytics for B2B SaaS
Your B2B customers want to see their data. Usage metrics, billing summaries, conversion funnels, performance dashboards. Every customer expects analyt…
AI Reporting: How to Automate Reports Without Losing Trust
Your data team spends 40% of their time building reports. Weekly revenue summaries. Monthly board decks. Quarterly business reviews. Customer-facing u…
MarketNow is live in 33 countries — here's what the traffic actually looks like (no hype)
I run an MCP (Model Context Protocol) marketplace at marketnow.site . Today I pulled the Vercel analytics by country for the last period. Here's what …
You're not as smart as you think you are
Nobody sets out to ship a SQL injection. Nobody opens their editor thinking "today I'll hardcode a secret." It happens because, in the moment, you wer…
Day 71 - Advanced Partitioning Strategies for Petabyte-Scale Tables
As datasets grow into the petabyte range, choosing the right partitioning strategy becomes one of the most important architectural decisions in ClickH…
I'm developing a tool called showsignature [critics wanted]
Hello Dev Community I'm developing a tool called showsignature I've been using it to develop itself since the beginning and I've use it on other proje…
Build a CDR Usage Analytics Dashboard in Python
Raw Call Detail Records are useful, but they are not exactly fun to read. If you are building with voice, messaging, or any communications workflow, C…
Day 57: Internals of ClickHouse® Data Parts and Merges – A Complete Guide
Introduction One of the reasons ClickHouse® can handle massive analytical workloads with exceptional speed is its storage architecture. Unlike traditi…
Power BI: From Data Cleaning to Interactive Dashboards
Imagine you are an analyst handling messy data and you need to build a dashboard for the team to understand the relationship between the numbers. The …
How to Analyze Storefront Elements by Revenue Impact, Not Just CTR
Most ecommerce teams can tell you where traffic comes from. Fewer teams can tell you which storefront components actually move revenue. That gap matte…
Best real-time analytics database for star schema and fast joins (2026 guide)
Modern OLAP databases like ClickHouse now handle star schemas and complex cross-table joins at massive scale. That gives data engineering teams a real…
Day 28 of 100 Days of ClickHouse® – Understanding TTL (Time To Live) for Automated Data Lifecycle Management
Introduction As data grows over time, storing every row forever becomes increasingly expensive and often unnecessary. Application logs, IoT events, mo…
Conversion Tracking for Developers: From Zero to Full Funnel Visibility
You can't optimize what you don't measure. Every blog post about conversion optimization, A/B testing, or paid ads assumes you have reliable tracking …
Day 25 of 100 Days of ClickHouse: Mastering the ClickHouse HTTP API
ClickHouse HTTP API: A Complete Beginner's Guide Introduction When most people think about interacting with a database, they usually imagine connectin…
What 506K real transactions taught me about how Latin Americans actually save
For nine years I ran Coinch, a goal-based savings app used by 30,000+ people across Mexico, Colombia, Argentina, Peru and Chile. When it wound down in…
Vector Search in Elasticsearch: From Keywords to Meaning - Building Semantic Search and RAG Pipelines
You type "k8s deployment troubleshooting" into your documentation search. The top result is a page about Kubernetes architecture that never mentions t…
Fast Automatic ML Hyperparameter tuning Using Optuna (w. MLflow model registry and IRIS DB)
This article presents a straightforward approach to automatically and efficiently tune hyperparameters for machine learning models using Optuna as the…
How WSO2 API Manager Transforms API Analytics & Monitoring
How WSO2 API Manager Transforms API Analytics & Monitoring Published on Dev.to — by Chamath H. Gunawardhana The Problem with Flying Blind Imagine …
What is the best real-time analytics database in 2026? An engineering buyer's guide
Traditional databases just can't keep up with high concurrency and low latency at the same time. The term "real-time" has become kind of meaningless. …
How to Detect MEV in Your Trades 2026: A Practical Guide
Answer first — To detect MEV against your own trades in 2026, follow a four-step forensic process: (1) pull the transaction receipt and identify the b…