Throwing out some undercooked ideas for supernova-ing a star, from possible to impossible: 1. Throw more mass into it, ideally 1+ stars under their own power v

Throwing out some undercooked ideas for supernova-ing a star, from possible to impossible: 1. Throw more mass into it, ideally 1+ stars under their own power via Shkavov thruster. 2. Compress it physically with mirrors and particle/photon beams (see inertial confinement fusion) 3. Compress it magnetically with incredulously powerful magnetic fields (see tokamak fusion). 4. Compress it gravitationally by putting a black hole in its center. 5. Make it more explodey by converting half of its mass into antimatter.