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Filter, extract, and transform JSON from the command line using a compact query language.

Scale Prometheus metrics storage with a horizontally scalable, multi-tenant time-series backend.

Manage Prometheus and Alertmanager deployments through Kubernetes-native custom resources.

Collect logs, metrics, traces, and profiles in a unified observability platform.

Step-by-step SQL practice on themed data tables

Build and train Python machine-learning models with tensor operations, neural-network layers, and automatic differentiation.

Fit, evaluate, and reuse Python models for common supervised and unsupervised machine-learning tasks.

Personalised early learning with reading, maths, thinking, creative and social-learning activities.

Computational queries across mathematics and factual topics

Centralize alert rules across metrics, logs, and database sources you already run.

Query connected SQL, NoSQL and API data through shared analytical datasets and dashboards.

Unify B2B data relationships for attribution, account engagement and revenue analysis.

Brand alerts with Boolean search and a limited mention history

Turn saved data-source queries into shared visualizations and scheduled dashboards.

Korean crypto markets with account checks and detailed order controls

SQL exercises running against SQLite in the browser

Inspect, reshape and query tabular files from a composable command-line toolkit.

Manage OpenTelemetry Collectors and opt-in workload instrumentation through Kubernetes resources.

Query real-time and forecast weather timelines for locations, selected fields and time steps.

Build serverless GraphQL and real-time Pub/Sub APIs over multiple data sources.

Search YouTube resources and build video, channel, playlist and subscription features.

Managed observability for logs, traces, metrics, and events.

A graphical administration and development interface for PostgreSQL servers.

An open-source distributed NoSQL database built around partitioned rows.