I'm Justen. I've been turning wrenches in commercial locksmithing and pre-2010 auto for years — exit devices, rekeys, master systems, sub-network field work through Bass/TrueSource/Affiliate Connect, the whole stack. My dad ran a shop. I came up in it, left it, and came back. This is the room I wish I'd had when I was starting out. What Shear Line is: Real jobs, real numbers, real mistakes Commercial hardware (Schlage, Sargent, Von Duprin, Detex, Hager — all of it) Pre-2010 automotive — the stuff most YouTube channels skip The business side: how sub-networks actually work, what jobs pay, how to not get burned What it isn't: Lockpicking sport content Gatekeeping or "you should already know this" energy Theory without job photos A few ground rules: Ask anything. There are no dumb questions here. The dumb move is staying stuck. Show your work. Job photos > theory posts. Before-and-afters, hardware shots, even your "what did I just walk into" moments. No poaching, no underbidding talk, no client doxxing. We don't gatekeep, but we also don't hand out keys to other people's buildings. Use judgment. Introduce yourself in the comments: Where you work What kind of work (commercial / residential / auto / sub-network / shop) One thing you're trying to get better at I'll go first below.