Sekai Tully Carr — Writing https://www.sekaitc.me/writing notes and thoughts en PPO is so Back! https://www.sekaitc.me/experiments/ppo-is-back https://www.sekaitc.me/experiments/ppo-is-back Wed, 17 Jun 2026 12:00:00 GMT thoughts before rl-ing a small moe My Taelin Moment https://www.sekaitc.me/peven/refactor https://www.sekaitc.me/peven/refactor Tue, 09 Jun 2026 12:00:00 GMT coding agents are the reason git reset exists Calibrating the Simulator https://www.sekaitc.me/tau/sim https://www.sekaitc.me/tau/sim Tue, 02 Jun 2026 12:00:00 GMT calibrating a tau-bench airline user simulator The Best of Both Worlds https://www.sekaitc.me/peven/package https://www.sekaitc.me/peven/package Mon, 27 Apr 2026 12:00:00 GMT a combined julia + python runtime Rewriting Peven's Engine in Julia https://www.sekaitc.me/peven/jl https://www.sekaitc.me/peven/jl Tue, 21 Apr 2026 12:00:00 GMT notes from rewriting the peven engine in julia, v0.1 through v0.4 Introducing Peven https://www.sekaitc.me/peven/intro https://www.sekaitc.me/peven/intro Wed, 25 Mar 2026 12:00:00 GMT good environments = good evaluations = good rewards