Here are Jain-focused ways to observe Diwali, keeping to the traditional Jain meaning of the festival:

• Reflect on Mahavira’s enlightenment and Nirvana: spend time in remembrance of Mahavira’s journey to kevala jnana and liberation.
• Temple and home puja: perform a simple puja or shraddha at home or at a Jain temple, honoring Tirthankaras and Mahavira with lamps (deep) and sacred offerings.
• Light lamps and keep ahimsa in mind: light lamps as a symbol of dispelling darkness with non-violence and purity of conduct.
• Namokar Mantra recitation: chant the Namokar Mantra (and other Jain prayers you prefer) with devotion, focusing on humility, truth, and non-violence.
• Dharmic discourses and sadhana: listen to or read short discourses on Jain ethics (ahimsa, aparigraha, satya, brahmacharya) and the life of Mahavira.
• Spiritual vows (vratas) or a special vrata: observe a simple one-day vrata or renewal of personal vows to practice non-violence, truthfulness, and restraint.
• Charity and dana (giving): donate to those in need, support Jain charitable activities, or contribute to a cause that helps the needy and preserves life.
• Cleanliness and environmental mindfulness: clean your space, avoid waste, and practice simple living, aligning with Jain values of restraint and non-harm to all beings.
• Respect for all living beings: use this time to cultivate kindness toward animals and all living beings; avoid festive foods that involve harm to creatures if possible.
• Family harmony and gratitude: share a peaceful, non-contentious atmosphere with family; express gratitude for the blessings of life and the opportunity to follow ahimsa.

If you’d like, tell me which aspect you want more detail on (prayer text, rituals, or a short diurnal schedule) and I can explain it simply in the Jain context.