Or you can use the paper forms and prepare them by hand:
2020
https://www.irs.gov/pub/irs-pdf/i1040gi.pdf
https://www.irs.gov/instructions/i1040gi
https://www.irs.gov/pub/irs-prior/f1040--2020.pdf
https://www.irs.gov/pub/irs-prior/f1040s1--2020.pdf
https://www.irs.gov/pub/irs-prior/f1040s2--2020.pdf
https://www.irs.gov/pub/irs-prior/f1040s3--2020.pdf
