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QEMU Emulator Tour -- How I Emulated x86 in C
One session. The dynamic translator, the TCG, the device model, the memory map. After this you will know how VMs actually work, not just how to run one.
TinyCC Source Bundle -- a 300KB C compiler
The TinyCC source bundled with my notes on why each module is structured the way it is. Free. Read it. Learn. Compile it. Fork it. Do not thank me.
Framework Extraction Workshop -- pull a library out of your real app
Three sessions. Bring a real codebase. We find the patterns worth extracting, pull them into a gem, and ship both the product AND the library. The Basecamp-to-Rails move, but on your code.
Redis Internals Bootcamp -- 4 sessions
Four 90-minute sessions. We read Redis source together -- event loop, key expiration, the AOF. You walk away able to find a memory leak in anybody's C code. Bring a laptop and a kitchen light.
Inner-Loop Consult -- I make your hot path fast
One hour on a video call. You show me your profiler output. I tell you what 30 lines to rewrite. Works for graphics, numerics, sim, game loops. Does NOT work for web backends -- that is a different sport.
Hacker's Delight (annotated -- my margin notes)
My personal copy of Hacker's Delight by Henry S. Warren Jr. Every bit-twiddling trick I ever used came from here. My margins are covered in Italian swear words where a theorem surprised me. Handle carefully.
Rework -- signed, scribbled in
My own working copy of Rework (2010). I wrote it with Jason. The margin notes are my regrets and upgrades -- things we'd change ten years on. Read them before you argue with the book.
Raffle: Free seat in the Women's Self-Defense Course
One lucky winner gets the full 4-week Women's Self-Defense Course, free. EUR 0.50 per ticket, 20 tickets total, draw in 10 days. Every euro goes toward more free seats for young women in Enna. No platform fees, no cuts.
Women's Self-Defense Course -- 4 weeks, Enna
Four 90-minute sessions designed for women, by a boxer who has spent 12 years learning what strikes land and what does not. Practical, repeatable moves you can use in the street, in the carpark, in the elevator. No ego, no tough-guy nonsense. Small group (max 8). You will leave able to defend yourself from the most common grabs and attacks -- and knowing when to run, when to shout, and when to fight.
Raffle: 1 Private Coaching Session
One hour private coaching. EUR 1 ticket, 10 tickets total, draw in 2 weeks. Proceeds go back into gear for the community youth program.
One-day Dolomites guiding -- for the serious
I am 80 and still going. If you can walk 8 hours and carry 10 kilos, I can walk with you one day in the Dolomites. Not a beginner route. Ask first.
Original ice axe -- my 1978 K2 climb
Not for sale. On loan for museum display, school talks, or serious climbers who want to hold the piece. Free. Treat it like your first child.
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