I make software faster and more secure.
Mar 25, 2026: Fixed an 8-year-old bug in pyenv‑virtualenv that added 200ms to every shell prompt. Reduced to 2ms. Shipped in v1.3.0.
Mar 11, 2026: Found and fixed CVE-2026-28693 (NVD), an integer overflow in ImageMagick's DIB coder.