If you don't have a Seder leader, don't want to join a remote Seder, and still want to have all or part of a Seder while at home, here are three Web links that provide you a pre-recorded leader.
1. Rabbi Jon
I recorded myself leading you through a Seder. Just click here whenever you are ready. It's an audio recording of 35 minutes. This is a Seder with the essential rituals and common songs and readings. You can play it through, pause, stop to eat or think or take a break, go back and forward.
2. Rabbinical Assembly -- 2-hour Seder
This complete traditional Seder is on YouTube. You can click here for the whole video or you can click here for a "playlist" with each part for you to select.
3. Rabbis around the country 30-minute Family Seder
Same idea -- click here for the video. There are different rabbis and their families, each doing a part.