create 10k json file for 1 nft gif

i have just 1 gif nft i want to produce 10k nft , from this unique gif, so i want someone to help me find solution to upload gif file to ipfs by pinata and generate 10k json file and upload it to validate the collection on opensea , i have already the contract of mint. so after finding a solution, we have to update the BaseUri string .thanks