lautaro@wilsf — bash — ~/sirena

2016–2020 · Co-founder, VP of Operations

Sirena

A WhatsApp CRM for sales teams. We grew it to 3,500+ customers across 25 countries, then sold it to Zenvia in 2020.

ARR at exit
$15M
Customers
3,500+
Countries
25

We started Sirena in 2016 because we saw something obvious that no one was building: every small business in Latin America was already living in WhatsApp, and none of them had a sales tool that worked there. So we built one.

Four years later we sold the company to Zenvia. The lessons below are the ones I keep coming back to — the ones I’d tell myself in 2016 if I could.

Lessons

  1. Start with the deer. It's the only animal that gives you optionality.
  2. Run your company on an operating system, not on your mood.
  3. Drop CAC and LTV. Look at payback period.
  4. Write the angry email. Don't send it.
about:blank ↗ open in new tab
site won't load? ↗ open in new tab
doom.exe — id Software, 1993

click inside · arrows / WASD to move · ctrl to fire · esc to quit

Trash
empty
Finder
~

$ what is this?

whatilearnedsofar.blog is a personal site by Lautaro Schiaffino — a serial founder. It collects what he's learned from building three companies (Rodati, Sirena, Darwin AI) and from living, plus a few side rooms (books, food, board games, portfolio).

$ how do I navigate?

Three ways:

  1. Tabs at the top of the terminal window (~ · sirena · darwin · rodati · whoami · portfolio · books · boardgames · food) click any to switch sections.
  2. Keyboard shortcuts — press ? to see all of them. g+s jumps to Sirena, D toggles dark mode, etc.
  3. Shell — click the + at the end of the tab bar to open an interactive shell. Try tree, ls darwin, cat sirena/lesson-1.md, open whoami, subscribe you@example.com, help.

$ what about the menu bar?

$ traffic lights work

The three dots in the title bar do something: red closes the window (icon appears on the desktop, click to reopen), yellow minimizes (pill at bottom of desktop, click to restore), green maximizes.

$ contact

Reach me on x.com, subscribe at /newsletter, or read more about how this site was made at /colophon.

navigation
g hhome (~/)
g wwhoami
g ssirena
g ddarwin
g rrodati
g ffood
g ccolophon
g nnewsletter
g ttags
g uuses
view
Dtoggle dark mode
+bigger text
−smaller text
0reset text size
edit
aselect all
ycopy page url
window
nnew shell tab
mminimize
zzoom (max)
xclose window
obring to front
help
?toggle this help
escclose