Self-hosted PaaS for Kubernetes

The O11y toolkit is a set of utilities that help you debug, augment, and manage your open source observability stack.

FrostDB is an embeddable columnar database written in Go. It features semi-structured schemas (could also be described as typed wide-columns), and uses Apache Parquet for storage, and Apache Arrow at query time. Building on top of Apache Arrow, FrostDB provides a query builder and various optimizers (it reminds of DataFrame-like APIs).

sake is a command runner for local and remote hosts. You define servers and tasks in a sake.yaml config file and then run the tasks on the servers.

Each year we release our in-depth performance benchmarks for various PHP platforms to see how different PHP versions stack up against each other.

A framework for managing and maintaining multi-language pre-commit hooks.

CeresDB is a high-performance, distributed, schema-less, cloud native time-series database that can handle both time-series and analytics workloads.

ReadySet is a lightweight SQL caching engine that precomputes frequently-accessed query results and automatically keeps these results up-to-date over time as the underlying data in your database changes. ReadySet is wire-compatible with MySQL and Postgres and can be adopted without code changes.

The Microservices SRE team is one of the Developer Productivity Engineering Camp teams. The team provides embedded SRE service to the product team. By working with/inside the product team, we improve the service reliability and share SRE practices with the team so that the team can maintain its reliability without SRE members. We rotate embedding teams and spread the practices in the Mercari organization.

We already introduced this team in the previous post (

), but, in this post, I would like to give the recent update of the team and future insight.

Diagram as Code for prototyping cloud system architectures

15 Advanced Git Techniques and Shortcuts

A set of modern Grafana dashboards for Kubernetes.

Fast file synchronization and network forwarding for remote development

The Modern Data Stack 🐰 — Directus is an instant REST+GraphQL API and intuitive no-code data collaboration app for any SQL database.