Tobias Müller
tobilg.com
Tobias Müller
@tobilg.com
Serverless enthusiast. DuckDB afficionado. AWS Community Builder.

Building @sql-workbench.com @ownstats.com @learningduckdb.com
Blog: https://tobilg.com
Introducing polyglot - A Rust/Wasm SQL transpiler for more than 30 SQL dialects.

It has 100% coverage for sqlglot‘s test fixtures.

github.com/tobilg/polyg...
GitHub - tobilg/polyglot: Rust/Wasm-powered SQL transpiler
Rust/Wasm-powered SQL transpiler. Contribute to tobilg/polyglot development by creating an account on GitHub.
github.com
February 14, 2026 at 5:19 PM
I just burned through the $50 Opus 4.6 fast mode credits with a single subagent in less than 14 minutes...

As far as I understood the usage is currently 50% discounted as well. Not sure who's the target group of this tbh. 🙃
February 8, 2026 at 9:09 PM
Reposted by Tobias Müller
🎞️ The slide decks and talk recordings of last Friday's developer meeting are out! duckdb.org/events/2026/...
February 2, 2026 at 4:08 PM
What if you could talk to your @duckdb.org? 😃

This was a fun experiment using local Whisper model and a local Text-to-SQL proxy to actually query your database with your voice! The extension will be released soon...
January 29, 2026 at 6:13 PM
It ran 11.5 hours iterating from a single prompt until the disk was full with 40GB Rust build artifacts 😬

Impressive what the new Claude Code task system can do w/o any MCPs/skills/etc.
Claude Code is happily fixing bugs & refactoring the application since more than 5.5 hours since the last prompt...

Who needs Ralph, Gas Town and the likes?
January 27, 2026 at 9:46 PM
Ducklings was updated to the latest @duckdb.org v1.4.4 - Run DuckDB on @cloudflare.social Workers with R2 support

github.com/tobilg/duckl...
GitHub - tobilg/ducklings: A minimal DuckDB WASM build for browsers and serverless environments like Cloudflare Workers
A minimal DuckDB WASM build for browsers and serverless environments like Cloudflare Workers - tobilg/ducklings
github.com
January 27, 2026 at 6:59 PM
Claude Code is happily fixing bugs & refactoring the application since more than 5.5 hours since the last prompt...

Who needs Ralph, Gas Town and the likes?
January 27, 2026 at 1:50 PM
AI Observer now supports session transcripts for imported and live sessions, as chat or timeline view. This all runs entirely on your machine, without sending data anywhere.

Give it a try: ai-observer.dev
January 26, 2026 at 11:43 PM
Just crossed 3B token/week on Claude Code 😂
January 26, 2026 at 10:01 PM
Just ask Claude Code whether implementation steps can be parallelized...
January 22, 2026 at 2:23 PM
Got Claude Code Max 20x three days ago and since then I average at 500M token/day 😬
January 21, 2026 at 10:26 PM
My @duckdb.org Terminal now also supports using local AI tools via Text-to-SQL proxy:
January 19, 2026 at 8:01 AM
Claude Code just one-shotted a migration of a fairly complex Electron app to Tauri in about 20min...

Planning mode with a few lines prompt -> Success.

Incredible.
January 18, 2026 at 4:11 PM
If you're building or using local-first applications that need Text-to-SQL generation, and have a subscription of Claude Code, Codex, Gemini, OpenCode or Continue, this might come handy:

github.com/tobilg/text-...
GitHub - tobilg/text-to-sql-proxy: A local HTTP proxy that bridges web applications with AI CLI tools to generate DuckDB-compatible SQL queries.
A local HTTP proxy that bridges web applications with AI CLI tools to generate DuckDB-compatible SQL queries. - tobilg/text-to-sql-proxy
github.com
January 17, 2026 at 10:10 PM
A minimal DuckDB Wasm build for browsers and serverless environments like @cloudflare.social Workers

github.com/tobilg/duckl...
GitHub - tobilg/ducklings: A minimal DuckDB WASM build for browsers and serverless environments like Cloudflare Workers
A minimal DuckDB WASM build for browsers and serverless environments like Cloudflare Workers - tobilg/ducklings
github.com
January 14, 2026 at 11:20 AM
I have @duckdb.org running on @cloudflare.social Workers
January 13, 2026 at 8:37 AM
I love it, Claude Code overloaded the second day in a row... Great to pay $$$ for this.
January 13, 2026 at 7:20 AM
@duckdb.org Wasm on @cloudflare.social Workers was achieved internally 👍
January 8, 2026 at 5:46 PM
AI Observer v0.2.0 was released with many improvements:

- Import historical sessions from Claude Code, Gemini CLI, and Codex CLI local files

- Export telemetry to Parquet

- Embedded pricing for 65+ models with automatic cost calculation

- Dashboard export/import support.
January 4, 2026 at 8:21 PM
Over the holiday I built a single-binary observability app for Claude Code, Codex and Gemini. It supports gathering metrics, logs and traces via the OTLP exporter.

Configure custom dashboards, view and search logs, view metric timeline data and trace waterfalls.

Built upon @duckdb.org
January 1, 2026 at 9:05 PM
Today I used Claude Code to debug an issue of the Gemini CLI 🤷🏼‍♂️

github.com/google-gemin...
OTLP HTTP Exporter sends to `/` instead of `/v1/{signal}` paths · Issue #15581 · google-gemini/gemini-cli
What happened? Description When using the OTLP HTTP protocol with a custom endpoint, telemetry data is sent to the root path (/) instead of the standard OTLP paths (/v1/traces, /v1/metrics, /v1/log...
github.com
December 26, 2025 at 1:29 PM
All I want for Christmas is... an Apache Iceberg Workbench in the browser!?
December 22, 2025 at 1:56 PM
Reposted by Tobias Müller
In seven weeks, we will host the first DuckDB Developer Meeting in Amsterdam.

We have four exciting talks lined up on building extensions in DuckDB, encryption in DuckDB, DuckPL and GizmoEdge.

For more details and the registration links, please head to duckdb.org/events/2026/...
December 12, 2025 at 1:55 PM