greykit.com

The personal site of Matthew “Shan” Romanek

Consulting

Greycat Consulting

vCISO services, security strategy, and hands-on technical consulting. Strategy and execution in one engagement, without the enterprise overhead.

vCISO OSCP 8× GIAC 20+ Years
Work with me

Offline Productivity Suite

PumaWorx

A suite of portable productivity apps that run offline in your local browser for minimal footprint and zero external connections or dependencies. Task tracking, kanban, notes, maps, flows, and more.

PumaKeeper PumaBoard PumaNoter PumaMapper PumaFlow PumaQuery
Explore the suite

Offline Security Suite

PumaWorx.Security

Lightweight, offline, portable GRC and Security Operations tools suitable for solo operators, consulting gigs, and SHTF emergencies.

PumaGRC2 PumaRisk PumaCase PumaLogger PumaBCP
Open the suite

games/

greykit.games

Nerdy games, edutainment, and other just-for-fun projects. Manage a SOC, secure a network, or just pet the puma.

./play
In progress

Other Stuff

Miscellaneous tools, apps, frameworks, and toys that I never really intended to do much with, but which some might find useful.

See all
A preview of the greykit::essays blog — a terminal-themed essay index with a category file tree and a dated list of posts.

Returning Soon

Greykit.Blahg

A firearms instructor standing behind a student, guiding their two-handed pistol stance at an outdoor range.

Returning Soon

PistolCraft

A young boy in a shirt and tie and large glasses, smiling and holding a vintage handheld electronic pinball game in a 1980s film photo.

Coming Soon

RetroTech

A field worker in a high-visibility orange safety vest sitting on a truck tailgate, giving a thumbs-up during a break.

Coming Soon

Ops Support

A preview of the personal timeline page — a vertical chronology of dated career entries with photos and employment cards.

Coming Soon

Timeline