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Developer tools presented by the people who built or use them. Every post says how the author is connected to the tool.

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Tools

Pydantic v2: validate data at the edges of your Python application
Pydantic turns type hints into fast runtime validation and serialisation. Here are the core patterns for API payloads, settings and LLM outputs, plus the v2 changes that trip people up.
RecallRun Editors · 2 Oct 2026 · 3 min read
Tools

Ollama: run open LLMs locally for development, privacy and offline work
Ollama makes running open models on your own machine a one-command job and exposes them through a local API. Here is the workflow, how to call it from code, and what to expect on real hardware.
RecallRun Editors · 1 Oct 2026 · 3 min read
Tools

pgvector: vector search inside the Postgres you already run
pgvector adds a vector type, distance operators and approximate indexes to PostgreSQL. Here is the setup, the queries, the index choices and when a separate vector database is still worth it.
RecallRun Editors · 30 Sept 2026 · 3 min read
Tools

gitcollect: group GitHub and GitLab repos into collections, with per-repo access control
A Go CLI that groups repos from several orgs into one collection and controls who can clone which repo. Updated for v3.3.0: smarter scan, whole-module moves, self-update, and team-based access on the way.
Alby Tomy · 30 Sept 2026 · 9 min read
Tools

DuckDB: fast SQL analytics on Parquet, CSV and DataFrames without a server
DuckDB is an in-process analytical database: no server, just a library. Here is how to query files and DataFrames directly, and where it fits next to pandas, Postgres and Spark.
RecallRun Editors · 29 Sept 2026 · 3 min read
Tools

Ruff: replacing Flake8, isort and Black with one fast linter and formatter
How to set up Ruff as both linter and formatter, which rule sets are worth enabling, and how to roll it out on an existing codebase without a giant noisy diff.
RecallRun Editors · 28 Sept 2026 · 3 min read
Tools

uv: one fast tool for Python packages, virtual environments and versions
uv replaces pip, virtualenv, pip-tools and pyenv-style version management with a single fast binary. Here is how the everyday workflow looks and when it is worth switching.
RecallRun Editors · 27 Sept 2026 · 2 min read

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Pydantic v2: validate data at the edges of your Python application

Ollama: run open LLMs locally for development, privacy and offline work

pgvector: vector search inside the Postgres you already run

gitcollect: group GitHub and GitLab repos into collections, with per-repo access control

DuckDB: fast SQL analytics on Parquet, CSV and DataFrames without a server

Ruff: replacing Flake8, isort and Black with one fast linter and formatter

uv: one fast tool for Python packages, virtual environments and versions