You're very welcome! It also has some additional enhancements compared to Lighthouse:

• To get utxo data, Lighthouse used a p2p network bootstrapped via Mike Hearn's bitcoinXT software. I just use https://mempool.space which is a more centralized way to do it
• Lighthouse assumed users keep funds in the built in wallet and then it marked some of them as "do not spend" if they were designated for a pledge. I just have users send the exact amount they want to contribute and don't assume users keep any additional funds in Semaphore
• I use a multisig so that other people can't "complete" the fundraiser on the recipients behalf, he has to do it himself. I don't think Lighthouse did that, I think it allowed anyone who saw the published signatures to complete the transaction on the fundraiser's behalf
• I have pledgers create 900 signatures in increments of 1% above the goal amount, that way the recipient can take the money even if he 10x's his goal. I don't think Lighthouse did that
• I made a mechanism for semi automatic refunds using (again) presigned transactions, where a yone visiting the site 24 hours after the fundraiser ends automatically sends everyone their money back. I don't think Lighthouse had a similar feature
• I also have an "irreversible pledge" option where you send the money directly to the recipient without doing any funky signature stuff, and I don't think Lighthouse had that