Experimenting with git commit --fixup as described in https://twitter.com/jaybazuzi/status/1328091226415894531

git-commit--fixup-experiment

 /tmp/fixup ☛ git branch start
 /tmp/fixup ☛ date > $(date +%s) # create a new file with the current date in it, just for something to commit
 /tmp/fixup ☛ git add -A && git commit --fixup start -a
[master c037a95] fixup! good
 1 file changed, 1 insertion(+)
 create mode 100644 1605488610
 /tmp/fixup ☛ date > $(date +%s)
 /tmp/fixup ☛ git add -A && git commit --fixup start -a
[master 26f9ec1] fixup! good
 1 file changed, 1 insertion(+)
 create mode 100644 1605488621
 /tmp/fixup ☛ date > $(date +%s)
 /tmp/fixup ☛ git add -A && git commit --fixup start -a
[master 59d3e58] fixup! good
 1 file changed, 1 insertion(+)
 create mode 100644 1605488624
 /tmp/fixup ☛ date > $(date +%s)
 /tmp/fixup ☛ git add -A && git commit --fixup start -a
[master 4ae24a7] fixup! good
 1 file changed, 1 insertion(+)
 create mode 100644 1605488626
 /tmp/fixup ☛ git la
* 4ae24a7       [Alexander Bird, 8 seconds ago]  (HEAD -> master) fixup! good
* 59d3e58       [Alexander Bird, 10 seconds ago]         fixup! good
* 26f9ec1       [Alexander Bird, 12 seconds ago]         fixup! good
* c037a95       [Alexander Bird, 19 seconds ago]         fixup! good
* 9416345       [Alexander Bird, 40 seconds ago]         (start) good
* 6ec2d9d       [Alexander Bird, 5 minutes ago]  Initial commit
 /tmp/fixup ☛ git rebase -i start^ --autosquash
hint: Waiting for your editor to close the file... 

# Note: I did not make any changes in vim -- just save and exit. 🧙

Press ENTER or type command to continue
Successfully rebased and updated refs/heads/master.
 /tmp/fixup ☛ git la
* a0c8e05       [Alexander Bird, 54 seconds ago]         (HEAD -> master) good
| * 9416345     [Alexander Bird, 54 seconds ago]         (start) good
|/  
* 6ec2d9d       [Alexander Bird, 5 minutes ago]  Initial commit
 /tmp/fixup ☛