$ docker build -t go-make-log . && docker run -v $(pwd):/output go-make-log -f json -o /output/log.json

$ du -h log.json    # Disk space used
1.0M log.json

$ wc -l log.json    # Number of lines
7531 log.json

$ head -n 3 log.json
{"level":"debug","message":"etisat rif onafon ari y nih ogiwab fosa itecawo to sef weduh baro e halui","timestamp":"2023-10-04T22:03:14.754762Z"}
{"level":"debug","message":"alen ehof h edix ofisew i luwesa ca a hagur get tufiroy wuhoai iseba","timestamp":"2023-10-04T22:03:14.754954Z"}
{"level":"info","message":"p uriye esitos dociha tud oce nosen i sobihas lasobu talena h eto ic","timestamp":"2023-10-04T22:03:14.754994Z"}

$ go run ./main -o log.txt -s 1GiB

$ du -h log.txt     # Disk space used
1.0G log.txt

$ wc -l log.txt     # Number of lines
10578414 log.txt

$ head -n 3 log.txt
2023-10-04T21:46:42.162239Z|info |ehuw ohemo elati l o wogeh arito akeho oheroc potawoh nes ha
2023-10-04T21:46:42.162360Z|debug|godet p zeni rela um beg epaheb bedi ihuyi yor tam el e afuni
2023-10-04T21:46:42.162376Z|debug|erol f o bisow ago r erut sov senas eg ad