DanielJoyce

For now, we can use the ubuntu use, but for improved security, later we will create a dedicated octoprint user

usermod -G dialout -a ubuntu

# add a gpio group
# Out of the box, ubuntu doesn't have one, and /dev/gpiomem is set accessible to only root.root
groupadd -g gpio

usermod -G gpio -a ubuntu

DanielJoyce

Schema (PostgreSQL v12)

        CREATE TABLE test (ts timestamp, value1 float8, value2 float8);
        insert into test values
        ('2017-01-01', 1, 1),
        ('2017-01-02', 1, null),
        ('2017-01-03', 1, 1),
        ('2017-01-04', NULL, 100),
        ('2017-01-05', 1, 1),

DanielJoyce

Schema (PostgreSQL v12)

CREATE TABLE test (ts timestamp, email varchar, title varchar);
insert into test values
('2017-01-01', 'me@me.com', 'Old title'),
('2017-01-02', 'me@me.com', null),
('2017-01-03', 'me@me.com', 'New Title'),
('2017-01-04', 'me@me.com', null),
('2017-01-05', 'me@me.com', null),

('2017-01-06', 'me@me.com', 'Newer Title'),

DanielJoyce

# /lib/udev/rules.d/70-uaccess.rules
# Add this line before  LABEL="uaccess_end"

# XP-Pen 13
SUBSYSTEMS=="usb", ATTRS{idVendor}=="28bd", ATTRS{idProduct}=="000b", TAG+="uaccess"

# Restart udev
# sudo udevadm control --reload-rules && sudo udevadm trigger

DanielJoyce

pub struct Foo {
    x: usize
}

pub struct Baz {}

pub trait Derp<Foo> {
    fn foo_it(&self);

DanielJoyce

# In /etc/udev/hwdb.d
evdev:input:b0003v28BDp000B*
 KEYBOARD_KEY_d0045=332