My Awesome Pool

A small stack of CS textbooks available to borrow. - Designing Data-Intensive Applications, 2e by Kleppmann & Riccomini (O'Reilly) - Structure and Interpretation of Computer Programs, Second Edition by Abelson and Sussman - Compilers: Principles, Techniques, and Tools by Aho, Sethi, Ullman (Addison Wesley) - Types and Programming Languages by Pierce

https://www.amazon.com/dp/B0CP8W3TVB

Brass hot-melt / heat-set insert nut kit, 1450 pieces, sizes M2, M2.5, M3, and M4 in multiple lengths. Includes a 60W ESD-safe temperature-controlled soldering iron (110V–240V) with stand for installing the inserts into 3D prints or plastic. Made in China. Iron gets very hot — use with care.

Complete Japanese sharpening kit, lent as a set: • Shapton Kuromaku K0702 "Orange Medium" (commonly #1000) — sets and sharpens the edge • Shapton Kuromaku K0704 "Enji Fine" (commonly #5000) — refines • Shapton Kuromaku K0710 "Melon Fine" (commonly #8000) — final polish • Suihei-kun PA#100 flattening stone — trues the stones back to flat, never touches a blade The Shaptons are splash-and-go: a spritz of water, no soaking needed. Each stores in its own snap-shut case that doubles as a stand. The PA#100 does need a soak before use, and plenty of water while lapping. The flattening stone is included because whetstones dish out in the middle with use, and a dished stone makes a consistent angle impossible. Pencil-grid trick: scribble a crosshatch on the stone's face, take a few passes on the flattener, and any pencil left behind marks a low spot not yet reached. All made in Japan.

Chrome-moly impact-rated step-down adapter: 3/4 inch female to 1/2 inch male, with detent ball and pin hole. Lets you run 1/2 inch drive sockets off a 3/4 inch gun or breaker bar. Easy to overpower 1/2 inch sockets this way, so go gently on the trigger.

Chrome-moly impact-rated step-up adapter: 1/2 inch female to 3/4 inch male, with detent ball and pin hole. Lets you run 3/4 inch drive sockets off a 1/2 inch gun or ratchet. Mind the torque — stepping up doesn't give the smaller drive more muscle.