Comment Definitely check out the Mormons (Score 2) 292
Any software you find is likely just going to be a database entry/maintenance type software tool for storing your genealogical information, but itself will not give you any information; it just provides a place for you to keep track of information you do find from other sources.
If you are stuck on open-source, I'm not sure how to help you, but if all you really care about is that it is free, I can strongly recommend Personal Ancestral File from here. While it has some fields for Mormon ordinances, you don't have to use those features and it will do nicely to maintain your records.
As for doing the actual research, again I recommend looking into the Mormons - they maintain branches of their main family history library at various church buildings around the world. The volunteers who staff those branches are instructed to not proselyte, they simply are there to help you do the research. The only time you'll have to pay for something is for obvious things like using the copy machine, or if you want to have records shipped in from Salt Lake City you'll have to pay postage, but that's it.
Disclaimer: yes, I am a Mormon, so I may be biased on this matter, but as far as I've seen, the Mormons are the premier experts in the world when it comes to family history research.
If you are stuck on open-source, I'm not sure how to help you, but if all you really care about is that it is free, I can strongly recommend Personal Ancestral File from here. While it has some fields for Mormon ordinances, you don't have to use those features and it will do nicely to maintain your records.
As for doing the actual research, again I recommend looking into the Mormons - they maintain branches of their main family history library at various church buildings around the world. The volunteers who staff those branches are instructed to not proselyte, they simply are there to help you do the research. The only time you'll have to pay for something is for obvious things like using the copy machine, or if you want to have records shipped in from Salt Lake City you'll have to pay postage, but that's it.
Disclaimer: yes, I am a Mormon, so I may be biased on this matter, but as far as I've seen, the Mormons are the premier experts in the world when it comes to family history research.