Zero-config AWS CUR → interactive cost dashboard (DuckDB and Rill)
I got tired of wrestling with AWS Cost & Usage Reports, so I wrote an open-source script: point it at a folder of Parquet CUR files, run one command, and get fully interactive Rill dashboards that adapt to your tags and cost drivers. Highlights Clone to custom dashboards in < 5 min Ingests many CUR exports at once—even with schema drift. Unifies schemas. Flattens MAP-type cols like resource tags automatically. Chooses chart types programmatically based on spend coverage, cardinality, and distibution. Generates Rill YAML (source, metrics (including measures), canvases) so you can tweak…
What it does
In the maker’s words, at launch
I got tired of wrestling with AWS Cost & Usage Reports, so I wrote an open-source script: point it at a folder of Parquet CUR files, run one command, and get fully interactive Rill dashboards that adapt to your tags and cost drivers. Highlights Clone to custom dashboards in < 5 min Ingests many CUR exports at once—even with schema drift. Unifies schemas. Flattens MAP-type cols like resource tags automatically. Chooses chart types programmatically based on spend coverage, cardinality, and distibution. Generates Rill YAML (source, metrics (including measures), canvases) so you can tweak further. Repo + demo video: https://github.com/Twing-Data/aws-cur-wizard Credit to Dan Goldin (CEO @ Twing Data) for the idea. Would love feedback or edge-cases I missed!
Does the same job
all alternatives →




- KDKomiser – Detect potential AWS cost savings2019 · github.com · ▲166
More dev tools this month
the category →



Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com

OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com

Launched alongside, June 2025
the whole month →- IM
Hey HN! Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history. This globe is probably my favourite so far: https://jameshard.ing/pilot/globes/all If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!
Life & fun · 2025 · jameshard.ing

Stunning presentations with AI. No design skills required.
AI · 2025 · chroniclehq.com

Build native mobile apps for iOS and Android without code.
Dev tools · 2025 · bble.io

All your connections, across all your socials.
AI · 2025 · pally.com
- WC
I was the main contributor to workout.lol, an open-source fitness app to easily build a workout routine. The project had traction (1.4k GitHub stars, 95 forks, ~20K visits/month), but was eventually sold due to video licensing hurdles. The new owner stopped maintaining it, and the repo went abandoned. Over the next 9 months, I sent 15 emails to try to save it : no replies. Feature requests & issues were ignored. The community was left with a "broken" tool let's say. I couldn't just let it die So I built the new version from scratch with the same open-source spirit, but a better…
Dev tools · 2025 · github.com