Become a sponsor to Leonardo Rifeli
👨💻 Hi there 👋
I'm Leonardo Rifeli. I'm a Brazilian Mathematician and Data Scientist.
CTO at Harmo, software engineer for 15+ years, based in Santa Catarina, Brazil. I build open-source developer tools in Go and Python: TUI dashboards, observability glue, and small daemons that solve specific problems well.
What I'm shipping
Most recently I built clawtop — a multi-host TUI dashboard for Anthropic Claude usage that aggregates per-PC token consumption, rate-limits, and per-project breakdowns into one always-on view. Tens of hours of design and code went in, and the daemon now runs on my own homelab feeding the dashboard 24/7.
Why sponsor
Sponsorships fund the time I take from consulting and day-job to keep shipping these projects: bug fixes, new features, docs, and the inevitable "real-user found something broken" iterations.
Every sponsor, at any tier, gets a direct say in what gets prioritized.
Beyond OSS
I write about engineering at rifeli.dev (PT-BR), mentor at ACATE, and advise startups through MIDITEC.
3 sponsors have funded leonardorifeli’s work.
At 10 monthly sponsors I can guarantee one dedicated weekend per month for OSS: shipping features users have asked for, reviewing PRs, and keeping documentation honest as projects evolve. Currently bootstrapped by a few generous early supporters, let's grow the floor together.
Featured work
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leonardorifeli/morfeu
The morfeu is a financial management system.
HTML 20 -
leonardorifeli/clawtop
Multi-host TUI dashboard for Anthropic Claude subscription usage. Daemon + viewer split keeps OAuth credentials on your workstation while a tmux dashboard on any host renders the merged view.
Go 3