Neps, small knots or clusters of fibers, can be incorporated into wool yarn to add texture. To create neps spun into wool yarn, first, raw wool is cleaned and carded, separating and aligning the fibers. During the carding process, additional fibers or foreign materials are introduced intentionally to form neps. These materials can be different in color or texture to enhance the visual and tactile quality of the yarn. After carding, the wool with neps is spun using either a hand spindle or spinning wheel. The key is to spin in a way that maintains the distribution of neps throughout the yarn, which may require adjusting the spinning technique to gently incorporate neps without dislodging them. This process results in a uniquely textured yarn that can be used for various knitting or weaving projects.

Surfboard resin is a synthetic or natural substance used in the manufacturing and repair of surfboards. Its primary function is to bond fiberglass cloth to the foam core of the surfboard, providing strength, durability, and water resistance. There are mainly two types of resins used: polyester and epoxy. Polyester resin is traditional, less expensive, and easier to sand but is not as strong or environmentally friendly as epoxy resin. Epi.resin, on the other hand, offers increased strength, lighter weight, and better resistance to yellowing from UV exposure but is more expensive. The choice between polyester and epoxy resin depends on the desired performance characteristics of the surfboard, as well as environmental considerations. Nowadays, there's a growing interest in bio-based resins, which provide a more sustainable alternative.

In the context of Angular, Yarn serves as an alternative package manager to npm (Node Package Manager), used for managing project dependencies. Angular, a popular web development framework, relies on numerous external packages for functionality enhancement. Yarn was developed by Facebook to address some of the shortcomings of npm, such as speed, stability, and security. It caches every package it downloads, so it does not need to repeatedly download them, which significantly reduces installation time. Yarn's lockfile (yarn.lock) ensures that the same dependencies are installed in every environment, eliminating the "works on my machine" problem. Developers working with Angular might choose Yarn over npm for its performance benefits and reliable dependency resolution, making it a preferred choice for large-scale projects.