You can drift align from almost anywhere on our planet that's not near the poles. The two alignment points are on the celestial equator near the meridian and 20 - 30 degrees above the E orW horizon. This is easy to do with your imaging camera and requires no additional software.
1. Level the tripod before attaching the mount. This disconnects the adjustments from each other.
2. Polar align your mount using a compass and the mount's altitude scale.
3. Point your scope to the first alignment point. Set tracking to sidereal, slew rate to 1x sidereal, disable guiding.
4. Start a 70 second exposure. Let the mount track for 5 seconds then slew E for 30 seconds, then slew W for 35 seconds.
5. Examine your image. You should see stars (5 sec tracked) with a "V" shaped tail that ends just past the star.
6. Adjust the azimuth of the mount to make the V collapse into a line that passes through the center of the star.
Repeat steps 4-6 until you have the mount aligned. Until you learn which way to move the mount, the first adjustment should be two full turns of the adjustment screw. This will make it easy to determine which way to move the mount to align it. Once done, point the scope to the second alignment point and repeat the process to adjust the altitude. If, while adjusting the mount, the V moves to the opposite side of the star, you moved it too far.
If the tripod wasn't perfectly leveled, there will be some interaction between the adjustments. Repeating the alignment process will improve the alignment. The test can be made more sensitive by using a 130 second exposure and 60, 65 second slews. Few mounts in the under $10k price class have adjustments fine enough to support the more sensitive test.