Tokamak GOLEM is a small device used primarily for educational purposes at Czech Technical University. Even though it employs a poloidal limiter to shape plasma, the lack of a tangential port prevents direct observation of hard x-ray (HXR) from runaway electrons (RE). The study of REs at the GOLEM tokamak mainly relies on indirect diagnostics of HXR emission. The HXR diagnostics on this device feature multiple scintillation probes, including NaI, CeBr, and YAP crystals. It was recently extended with a set of compact LYSO scintillators coupled with silicon photomultipliers (SiPMs). A model of GOLEM tokamak and detectors was developed using the Geant4 Monte Carlo toolkit for particle and radiation transport. The simulations include a monoenergetic RE source directed toward the limiter and a typical magnetic field configuration. Simulations were performed for various RE energies, source locations, and pitch angles to cover a range of possible scenarios. The placement of detectors around the tokamak was guided by radiation transport modeling. This aims to ensure that information about energy distribution and spatial localization of primary REs can be inferred, just from indirect observation. This contribution will discuss the detector setup, modeling, and initial findings from the combined experimental and simulation-based approach.