Gentle galoots!
I spent a full and interesting week (Mon-Sat 8 hours a day with some 
time off for lunch) learning to make inlays with Steve Latta at CT 
valley school of woodworking.  He and Bob van Dyke are like Mutt and 
Jeff, old buddies from way back, and the school is nice. A bunch of 
benches loosely clustered taking up maybe a third of the floor space 
with honking huge high end tailed apprentices around the perimeter.  The 
class started totally hand for a day and a half, basically as would have 
had to be done during the Federal (1780-1820-is Jeff) period, then 
depended on a flock of small apprentices all named Dremel, one per 
student.  Steve described having taught a weekend class, first day hand 
second day powered.  One student said, "I liked the first day why did we 
need the electrical junk", while another said "why did we waste all our 
time the first day".  So while it is clear that traditional stringing  
is mostly straight lines and circles that you don't need power for, some 
of his modern pictorial is basically small scale pattern routing with a 
(Dremel) routah.

Given all the discussion on the list at the time about downsizing, even 
if you use the apprentice this is very human scale work you could do in 
a motel room if you traveled a lot by car, sharp knives and flying not 
so good. Does not required massive strength for those of us who are 
slowing down if you decorate smaller objects.

He made the point that most of the hand tools are basically bits of wood 
with small metal parts, we don't have period examples but figuring that 
most patterns involve very few radii, you can make tools to suit, we 
make one and were given another.  Big trick is making a cutter that is 
essentially 2 crosscut teeth, video at 
https://www.youtube.com/watch?v=Guu-6NI9Szo .  Stick it on one end of a 
3/8" by 1.5" by length required block, nail a 1/8" diameter nail in the 
required distance for the radius from the blade, clip nail and file to a 
point; done.  He used to make 2-3 per job and then figured out he could 
keep moving blades around and recycle bodies if he labeled them for 
future use.  Other tools are thicknessing gauge (1/16"?) blade held in a 
block with a slit between blade and block, bit of funnel effect in blade 
shape, shows up in a bunch of videos both him and other folks; and a 
marking gauge with a knife to to rip channels for stringing. Inlayed 
ovals get traced with an Exacto knife and excavated, "berries" are 
drilled, and btw you can used brass tubing to make cutters for whatever 
size berry (plug) you want (cut across a few diameters with a triangular 
file).  That kind of class, keep the phone warmed up for pix and keep 
sketching the crucial points.

He has just retired from 26 years teaching wood technology at a college 
in Pennsylvania and has started a book for LAP.  He made a stack of very 
nice videos at the college, not only not talking heads, in many cases no 
head at all, just hand closeups.  Besides the one above, 
https://www.youtube.com/watch?v=Guu-6NI9Szo Making banding by totally 
galoot methods,
https://www.youtube.com/watch?v=tV4CVLwx0mg assorted bandings that 
require small accurately sized sticks but hand planed!
https://www.youtube.com/watch?v=yfGvPJmN1tA making a rural oval, easily 
cut with fretsaw or skinny coping saw blade

The entire stash including many items not discussed here at 
https://www.youtube.com/@thaddeusstevenscabinetshop9379/videos
He also appears in some LN video clips outside the ones you can buy.  LN 
is not making more of the tools, not a good fit for them especially 
since the plague when they have trouble keeping up with basics, they 
have split amicably and Steve is is discussion with some other smaller 
more specialised folks for future.  I notice a complete unused set from 
LN available at Jim Bode's.

In particular there is a video set for a very nice marking gauge which 
used to be a student project (6 videos but I think you make your own 
pattern, doesn't seem to be covered).  His personal gauge was the 
prototype in koa, substantial, filled the hand nicely, already thinking 
about making one, but will need full inch+ thickness to get the effect.

Definitely worth the price, made a radius cutter with provided blade and 
made a second blade, have the thicknesser and a ton of small bits like a 
square of plexiglass with a divot in the middle to position the center 
of your radius cutter without leaving a divot in the work, a plexiglas 
oval pattern for making your own, he has has available for very 
reasonable very small bits for the Dremel, tiny file for making cutters, 
a plexiglas circle cutter for the Dremel..  In the past has taught at Ct 
Valley and Marc Adams, now that he is retired don't know if he will 
teach more.

Esther who just bought the lee Valley 1/3 scale low angle block plane 
for cleaning up stringing, a small apprentice, and will spend more than 
the apprentice on a base for it from Stew-Mac.  Fortunately my mother 
who hasn't before sent me a check for my birthday ;-)